Explanation:

The population of a town increased from 1,75,000 to 2,62,500 in a decade. The average percentage increase of the population per year is---- Correct Answer 5% The population increased in 10 years = 262500 - 175000 = 87500 The population increased in 1 years = 87500/10 Now, By 175000 peoples 1 years increased 8750 By 1 peoples 1 years increased = 8750/175000 By 100 peoples 1 years increased = ( 8750×100)/175000 = 5%

Explanation:

If the salary of an employee is reduced by 10 percent for his late attendance and then increased by 10 percent on a pardon , how much does he lose? Correct Answer 1% এখানে, শতকরা হ্রাস পেলো = 10 - 10 - 10 × 10/100 = - 1% সু্তরাং, শতকরা 1% হ্রাস পেল।

Explanation:

The humidity of air measured i percentage is called _ Correct Answer Relative humidity Relative humidity is the amount of water vapor present in the air divided by the maximum amount that the air could contain at that temperature. Relative humidity is expressed as a percentage. The relative humidity is 100% if the air is saturated with water vapor and 0% if no water vapor is present in the air at all.

Explanation:

If 18 is 15 percent of 30 percent of a certain number , what is the number? Correct Answer 400 ধরি, সংখ্যাটি x x × 15/100 ×30/100 = 18 x = 18 × 1000/45 x = 400

Explanation:

A manufacturer sells three products i.e A, B and C . Product A costs 200 and sells for 250, Product B costs 150 and sells for 180 , product C costs 100 adn sells for 110. On which product, he has maximum percentage of profit? Correct Answer A only Light Year is related to distance. A light - year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second.

Explanation:

If the length of each of the sides of three square garden's plots is increased by 50 percent, by what percent is the sum of the areas of the three plots increased ? Correct Answer 125% Most pencil cores are made of graphite powder mixed with a clay binder. Graphite pencils (traditionally known as 'lead pencils') produce grey or black marks that are easily erased, but otherwise resistant to moisture, most chemicals, ultraviolet radiation and natural aging.

Explanation:

Alam sold two vehicles for Tk. 46000 each . If he gained 10% on the first and lost 10% on another , then what is his percentage profit or loss in this transaction? Correct Answer 1% loss Let the profit be X% & loss be Y%. So, net profit/loss % = X + ( - Y) + X.( - Y)/100 (Negative sign denotes that there is a loss.) = 10 + ( - 10) + 10.( - 10)/100 = - 1 (Negative sign denotes that there is a net loss.) So, the net loss percentage is 1%.

Explanation:

A can finish a work in 5 days and B takes 4 days to do the same work . If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together? Correct Answer 20 days The work is increased by 8 times so the total work to be completed is [1 + 8 = 9] A completes 1/5 work in a day [ because he completes the work in 5 days] B completes 1/4 work in a day[ because he completes work in 4 days] So working together A&B completes 1/5 + 1/4 = 9/20 work in one day therefore the total increased work 9 will be completed in 20 days.

Explanation:

A manufacturer sells three products i.e A, B C. Product A costs 200 and sells for 250, product 150 and sells for 180, Product C cost 100 and sells for 110. On which product, he has maximum percentage of profit? Correct Answer A only A এর শতকরা মুনাফা = ২৫০ - ২০০/২০০ × ১০০ = ২৫% B এর শতকরা মুনাফা = ১৮০ - ১৫০ /১৫০ × ১০০ = ২০% C এর শতকরা মুনাফা = ১১০ - ১০০/১০০ × ১০০ = ১০% উত্তরঃ A only.

Explanation:

A manufacturer sells three products i.e A, B and C. Product A costs 200 and sells for 250, Product b costs 150 and sells for 180, product C costs 100 and sells for 110. On which product, he has maximum percentage of profit? Correct Answer A only A এর শতকরা মুনাফা = 250 - 200 /200 × 100 = 25% B এর শতকরা মুনাফা = 180 - 150 /150 × 100 = 20% C এর শতকরা মুনাফা = 110 - 100/100 × 100 = 10% Answer : A only.

Explanation:

f the length of each of the sides of three squeare garden's plots us increases by 50 percents, by what percent is the sum of the areas of the three plots increased? Correct Answer 375% 3 টি বর্গক্ষেত্রের প্রতিটির দৈর্ঘ্য 50% বৃদ্ধি পায় 1 টি বর্গক্ষেত্রের ক্ষেত্রফল বৃদ্ধি পায় ( 50 + 50 + 50× 50/100) % = ( 100 + 25) = 125 % 3 টি বর্গক্ষেত্রের ক্ষেত্রফল বৃদ্ধির যোগফল = ( 125 + 125 + 125) % = 375%

Explanation:

If w is 10% less than x, and y is 30% less than z, they wy is what percent less than xz? Correct Answer 37% Let the profit be X% & loss be Y%. So, net profit/loss % = X + ( - Y) + X.( - Y)/100 (Negative sign denotes that there is a loss.) = 10 + ( - 10) + 10.( - 10)/100 = - 1 (Negative sign denotes that there is a net loss.) So, the net loss percentage is 1%.

Explanation:

If A's salary is 30% more than B's then now percent is B's salary less than A's? Correct Answer 761213 A এর বেতন 130 টাকা হলে B এর বেতন 100 টাকাA এর বেতন 1  টাকা হলে B এর বেতন <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mn>100</mn><mn>130</mn></mfrac></math> টাকা A এর বেতন 100 টাকা হলে B এর বেতন  <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>100</mn><mo>×</mo><mn>100</mn></mrow><mn>130</mn></mfrac></math>উত্তর: <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>76</mn><mfrac><mn>12</mn><mn>13</mn></mfrac></math>

Explanation:

If the numerator of fraction is increased by 200% and the denominator is increased by 350% . The resultant fraction is 5/12 . what was the original fraction ? Correct Answer 58 Let numerator of the fraction is X and denominator is Y, then fraction will be X/Y.Numerator increased 200%, so new numerator would be,[X + (200 of X)/100] = 3X - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (1)New denominator,[Y + (350Y)/100 ] = 45Y/10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (2)Now, accordibng to question,3X /(45Y/10) = 5/1230X / 45Y = 5/12360X = 225YX/Y = 225/360X/Y = 5/8So, Original fraction was 5/8.

Explanation:

Aalm sold tow vehicles for Tk. 46000 each . If he gained 10% on the first and lost 10% on another , then what is his percentage profit or loss in this transaction ? Correct Answer 1 % loss In the case where loss and gain percentage is common on same selling price, always a loss incurs in total deal. And this can be calculated by a short - cut: Loss on total deal, = (Common loss or gain percentage/10)^2 = (10/10)^2 = 1%

Explanation:

A man can reach a certain place in 40 hours . If he reduces his speed by 1/15th, he goes 5 km less in that time . Find the total distance covered by him. Correct Answer 75 km . Correct Option: DLet Distance = D km, Speed = S km/h Time = Distance Speed 40 = Distance .... (1) Speed After reducing speed, Distance = Distance – 5 km, Speed = S × 14 km/h 15 Time = Distance Speed 40 = (Distance – 5) .... (2) Speed × 14 15 After solving equation 1 and 2 Distance = (Distance – 5) Speed Speed × 14 15 14 Distance = 15 (Distance – 5)14 Distance = 15 Distance – 75Distance = 75 km.Hence, option D is correct.

Explanation:

What percent of 200 is 0.001% of 22×53? Correct Answer 0.0025 Daocheng Yading Airport in southwest China's Sichuan Province is the world's highest - altitude civilian airport. It is located at a height of 4,411 meters above sea level.

Explanation:

The population of Barisal is 50 percent of the population of Chittagong. The population of Barisal is what percent of the total population of Baisal and Chittagong? Correct Answer 3313% As well as the logic symbols “0” and “1” being used to represent a digital input or output, we can also use them as constants for a permanently “Open” or “Closed” circuit or contact respectively. A set of rules or Laws of Boolean Algebra expressions have been invented to help reduce the number of logic gates needed to perform a particular logic operation resulting in a list of functions or theorems known commonly as the Laws of Boolean Algebra. Boolean Algebra is the mathematics we use to analyse digital gates and circuits. We can use these “Laws of Boolean” to both reduce and simplify a complex Boolean expression in an attempt to reduce the number of logic gates required. Boolean Algebra is therefore a system of mathematics based on logic that has its own set of rules or laws which are used to define and reduce Boolean expressions. The variables used in Boolean Algebra only have one of two possible values, a logic “0” and a logic “1” but an expression can have an infinite number of variables all labelled individually to represent inputs to the expression, For example, variables A, B, C etc, giving us a logical expression of A + B = C, but each variable can ONLY be a 0 or a 1.

Explanation:

A shopkeeper purchased 70 kg of potatoes for Tk. 420 and sold the whole lot at the rate of Tk. 6.50 per kg. .what will be his gains percent? Correct Answer 813% "ক্রয়মূল্য 420 টাকা বিক্রয়মূল্য 70 × 6.50 = 455 টাকা এখন, লাভ (455 – 420) বা 35 টাকা ∴ লাভের হার 35420  ×   100% = 8.3% বা  813%

Explanation:

In a shipment of 120 machine parts 5% were defective . In a shipment of 80 machine part, 10% were defective . For the two shipments combined , what percent of the machine parts were defective? Correct Answer 7.0% For the two shipments combined, the percent of defective parts = (total # of defective parts)/(total # of parts)*100 = (120∗0.05 + 80∗0.1)/(120 + 80)∗100 = 7

Explanation:

The average age of a group of 15 employees is 24 years. If 5 more employees join the group, the average age increases by 2 years. Find the average age of the new employees. Correct Answer 32 The average age of a group of 15 employees is 24 years. Therefore, the sum of the ages of all 15 of them = 15 * 24 = 360 When 5 more employees join the group, the average age increases by 2 years. New average = 26. Now, there are 20 employees. Therefore, the sum of the ages of all 20 of them = 20x26 = 520 Therefore, the sum of the ages of the 5 new students who joined = 520 - 360 = 160 And the average age of each of the 5 new students = 160/5 = 32 years.

Explanation:

In an examination 40% of the total candidates are female .40% of female candidates and 30% of male candidates pass in the exam.What is the overall percentage of passing ? Correct Answer 34% ধরি, মোট পরীক্ষার্থী = 100 জন ∴ মহিলা ,, = 40 ,, ∴পুরুষ ,, = 60 ,, মহিলা পরীক্ষার্থী পাশ করেন = 40 ×  40 100  জন = 16 জন ∴পুরুষ ,, ,, ,, =  60 × 30100 জন = 1৪ জন। ∴সার্বিক পাশের হার = (16 + 18)% = 34%

Explanation:

The population of a metropolitan city doubled every 8 years from 1975 to 1999. what was the percentage increase in population during this time? Correct Answer 800% Year 1975 to year 1999 = 24 years = three periods of '8 years' So, the population became (2 x 2 x 2 = 8) times of its initial population. Therefore, the population of the city increased to 8 x 100% = 800%.

Explanation:

সিয়াম সপ্তম শ্রেণীর বার্ষিক পরীক্ষায় কৃতকার্যদের মধ্যে মেধাক্রম উপর থেকে ১৫ তম এবং নিচ থেকে ৩০তম স্থান অধিকার করে। ৬ জন ছাত্র পরীক্ষা দেয়নি ও ১০জন ফেল করে। মোট ছাত্রসংখ্যা ছিল? সঠিক উত্তর ৫০ Put on অর্থ পরিধান করা, put is অর্থ দাবী করা, put up অর্থ স্থাপন করা এবং put across কোনো অর্থ বহন করে না।

Explanation:

What is the percentage shareholding of the Government of Bangladesh in IFIC Bank Ltd? Correct Answer 35% The Government of the People's Republic of Bangladesh, now, holds 32.75% of the share capital of the Bank. Directors and Sponsors having vast experience in the field of trade and commerce own 8.33% of the share capital and the rest is held by Institutions both local & foreign and General Shareholders.

Explanation:

In which of the following banks did disbursement of loan continuously increase over the years? Correct Answer Titas Disbursment of loan was continuously increased in Titas Bank. Where the increasing order: 13 19 27 34 42