Explanation:

If debater A is in the team, which other debaters must be in the team as well? Correct Answer X,Z, and D Option (a) has Yand Y and A cannot work together" © " B " B " A " " " " (d) " Z " C They " " "

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which of the following is the food for trees? Correct Answer N ,P, K,S and Al "Self - esteem is raised" is wrong. Correct will be " raises self - esteem".

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If a mechant offers a discount of 30% on the price, then he/she makes a loss 16% percentage of profit of loss will the merchant make if sell at a discount of 10% the list price? Correct Answer 8% profit Let, the cost price be Tk. X So, the selling price be Tk. (x - 16x100) = Tk 21x25 At 30% discount, If selling price Tk. 70 then list price Tk. 100 so " " " 21x25 then list price tk 21x×10025×70 = Tk 6x5 Again, at 10% discount, If list price Tk. 100 then selling price Tk. 90 so " " " 6x5 then selling price tk 90×6x100×5 = Tk 27x25 So, profit will be Tk (27x25 - x) = Tk 2x25 So, profit percent (2x25÷x×100)% = 8%

Explanation:

Three candidates contested an election and received 1136, 7636 and 11,628 votes respectively. What percentage of the total votes the winning candidate get? Correct Answer 57% Total votes =  1136 + 7636 + 11628 = 20400 So, winning candidate gets = 11,628 / 20400 x 100% =  57%

Explanation:

If the width of a rectangle is increased by 25% and length is decreased by 25%, the resulting area is what percent of the original data. Correct Answer 93.75% Let the length and width be L and W respectively. So, initial area, A = L x W = LW New length = 0.75L New width = 1.25W New area, A' = 0.75L x 1.25W = 0.9375LW = 0.9375 x 100% of A = 93.75% of A

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what type of organization is BIMSTEC? Correct Answer Economical Antonyms: permeable, semipermeable, porous.

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How many 1- inch square tiles would it take to cover the floor of a closet that has dimensions 5 feet by 4 feet? Correct Answer 2880 Dimention of the floor (5 × 4) square feet = (60 × 48) square inch = 2880 " " So, required number tiles (2880÷1) = 2880

Explanation:

Four persons can compte a job in 8 days. After four days two persons have left the work. How many days should it take for the remaining persons to complete the work? Correct Answer 8 4 persons can complete 1 portion in 8 days so 4 " " " 12 portion in 82 days so 2 persons can complete 12 portion in 8×22 days = 8 days

Explanation:

In a city , 40% of the people are illiterate and 60% are poor. Among the rich , 10% are illiterate. What percentage of the poor population is illiterate? Correct Answer 60% Let, total = 100 people, then, poor = 60, rich = 40. illiterate rich = 10% of 40 = 4 poor = 40 - 4 = 36 Let, x% is illeterate poor x% of 60 = 36 ⇒x100×60 = 36 ∴x = 1000

Explanation:

Among the executives who reaches office first? Correct Answer S Non - volatile শব্দের অর্থ অনুদ্বায়ী বা স্থায়ী। কম্পিউটার অনুদ্বায়ী বা স্থায়ী স্মৃতি হলো ROM। RAM হলো Volatile বা অস্থায়ী মেমোরি। তবে RAM ও ROM উভয়ই কম্পিউটারের মুখ্য মেমোরি।

Explanation:

Who ranks fourth in the sequence of reaching office? Correct Answer T Excel worksheet - এর শুরুতে উপড়ের রো - এ ঐ sheet - টিতে উপস্থাপিত কন্টেন্ট (বিষয়বস্তু/তথ্যউপাত্ত) সম্পর্কে ধারণা পাওয়া যায়। যেমন, Label - এ যদি Product, Price , Tax, Total Amount - এ শব্দগুলো দেখা যায় তবে এখানে উল্লেখিত content - টি কোনো বাণিজ্যিক বা আর্থিক প্রতিষ্ঠানের হিসাব সংক্রান্ত বোঝা যায়।

Explanation:

A train travelling at 100 km per hour overtakes motorbike travelling at a speed of 65 km per hour in 40 seconds. What is the length of the train in meters Correct Answer 550 meters In 1 hour train more goes (100 - 65) km = 35000m So, the length of the train (35000×403600)m = 388.89m

Explanation:

A number is decreased by 10% and then increased by 10% . The number so obtained is 10 less than the original number. what was the original number ? Correct Answer 1,000 Let the number x. After decrease by 10%, the number is .90x then it is increase by 10% and becomes .90x × 1.1 = .90x Now, x - .99x = 10 ⇒ x = 1000

Explanation:

Two numbers are in the ratio 5:4 and different is 10. What is the largest number ? Correct Answer 50 Let, the two numbers are 5x and 4x According to questions : 5x - 4 = 10 so, x = 10 So, largest number = 50

Explanation:

In an examination , 34% of the students failed in Mathematics and 42% failed in English . If 20% of the students failed in both the subjects , then the percentage of students who passed in both the subjects was: Correct Answer 44 % passed in both = 100 - 34 + 42 - 20 = 44

Explanation:

A sum invested at 5% simple interest per annum grows to Tk. 504 in 4 years The same amount at 10% simple interest per annum in 212 years will grow to : Correct Answer Tk. 525 F2F1 = p(1 + n2r2)p(1 + n1r1) = 1 + 2.5×.101 + 4×.05 = 1.251.2∴F2 = 1.251.2×F1 = 1.251.2×504 = 500

Explanation:

If x = 2y = 3z and xyz =36, what is the value of z ? Correct Answer 2 Here, x = 3z Again, 2y = 3z or, y = 3z/2 Now,  xyz = 36 or,  3z × 3z/2 × z = 36 or,  z3  = 36 × 2 / (3 × 3) or,  z3  = 8 or, z3  =  23 So,  z =  2

Explanation:

A person borrows Tk. 5000 for 2 years at 4% p.a. simple interest . He immediately lends to another person at 614% p.a. for 2 years .Find his gain in the transaction per year . Correct Answer Tk. 112.50 Gain in 2 years = 5000×254×2100 - 5000×4×2100 = 625 - 400 - 225 ∴ Gain in 1 years = (225÷2) = 112.50 Tk.

Explanation:

In a fraction , if numerator is increased by 40% and denominator is increased by 80% then what fraction of the original is the new fraction ? Correct Answer 79 Let the fraction be yx . After the changes, it becomes 1.4y1.8x  = 7y9x = 79 of yx

Explanation:

A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men? Correct Answer 1 remaining no of days = 38 - 25 = 13, the work was finished 1 day earlier. So 35 men can complete the work in 12 days ∴ 1 ,, ,, ,, ,, 12×35 ∴ 30 ,, ,, ,, ,, 12×3530 ,, = 14 days The contractor would bd (14 - 13) Or, 1 day behind.

Explanation:

A garrison of 500 men had provisions for 27 days . After 3 days a reinforcement of 300 men arrived . For how many more days will the remaining food last now? Correct Answer 15 500 men had provisions for (27 - 3) = 24 days ∴ 1 ,, ,, ,, ,, 500×24 ∴ (500 + 300) Or, 800 ,, ,, 500×24800 = 15 days

Explanation:

A warehouse has 20 packers.Each packer can load 1/8 of a box in 9 minutes. How many boxes can be loaded in 112 hours by all 20 packers ? Correct Answer 25 Each packer can load a box in 9×8 = 72 min 20 packers in 72 min can load 20 boxes So, 20 packers in 112 min can load = 20×112/72 ≈ 31 boxes

Explanation:

111xx+y Correct Answer x+yx = 1/1/1/x/( x + y ) = 1/1/( x + y )/x = 1/x/( x + y) = ( x + y )/x (ans.)

Explanation:

If the radius of a circle is increased by 6% , then the area is increased by : Correct Answer 12.36% Let original radius r, after 6% increase it is 1.06 r A2A1 = π(1.06r)2πr2 = 1.1236 = 1.1236 × 100% = 112.36% So increase = (112.36 - 100)% = 12.36%

Explanation:

If the height of a triangle is decreased by 40% and its base is increased by 40% , what will be the effect on its area? Correct Answer 16% decrease Area2Area1 =  12×.60A×1.4B12×A×B = .84 Area2 = .84 of Area1 . = (1. - .16) of Area1. ∴ 16% decrease.

Explanation:

If 8 men can reap 80 hectares in 24 days , then how many hectares can 36 men reap in 30 days ? Correct Answer 450 8 men in 24 days reap 80 hectares ∴ 1 ,, ,, 1 ,, ,, 808×24 ,, ∴ 36 ,, ,, 30 ,, ,, 80×36×308×24 Or, 450 hectares

Explanation:

A tank is 25 m long , 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq.m is : Correct Answer TK. 558 Area to be plastered = 2(l + b)×h  +  (l×b) = 2(25 + 12)×6  +  (25×12) = (444 + 300) = 744m2 ∴ Cost of plastering = 744×75100 Tk. = 558Tk.

Explanation:

At a photocopy center , the first 10 copies cost x taka each. Each of the next 50 copies costs 2 taka less per copy . From the 61 st copy on, the cost 1 Taka per copy, In terms of x how much does it cost in. Taka to have 200 copies made/ Correct Answer 10x+240 প্রতি কপি x টাকা করে 10 কপিতে খরচ 10x টাকা। পরবর্তী 50 কপিতে খরচ 50(x  -  2 ) =  50x- 100 টাকা। পরবর্তী (200  -  60) বা 140 কপিতে খরচ 140 টাকা। ∴  200 কপিতে মোট খরচ (10x   +   50x  -  100   +   140)টাকা। Note: সঠিক উত্তর 60x   +   40 টাকা।

Explanation:

The diagonal of a square is 42 cm. The diagonal of another square whose area is double that of the first square , is: Correct Answer 8cm diagonal = a2 = 42 ∴ side = a = 4 ∴ area = 4× 4 = 16 ∴ 2 × area = 16 × 2 = 32 New area = 32 New side = 32 = 4×8 = 28 New diagonal = 28×2 = 28×2 = 216 = 2×4 = 8cm

Explanation:

It is estimated that of living will increase by 8.50 percent per year. How much should a piece of candy cost in tree years if it costs Tk. 1.50 today? Correct Answer Tk. 1.915 প্রতি বছরে বৃদ্ধির হার ( r ) = 8.50% ∴ সবৃদ্ধিমূল C = p(1  +  r)n = 1.501 + 8.501003 = 1.501 + 0.0853 = 1.501.0853 = 1.50×1.27 = 1.915

Explanation:

A man completes 45 of a job in 10 days . At this rate, how many more days will it take him to finish the job? Correct Answer 6 He completes 58 of a job in 10 days ∴ ,, 1 ,, ,, ,, 10×85 ,, = 16 days So (16 - 10 )Or 6 more days are required.

Explanation:

If 0.4×0.4×a=0.4×0.04×b, then the value of ab is : Correct Answer 0.016 UNDP প্রকাশিত Human Development Index 2019 অনুযায়ী ঃ প্রথম নরওয়ে বাংলাদেশ ১৩৫ তম নাইজার সর্বনিম্ন ১৮৯ তম ।

Explanation:

In the figure below,if the area of the square OPQR is 2, find the area of the with centre O. Correct Answer 2π ক্রিয়াকে ‘কী দিয়ে/ কী উপায়ে’ দিয়ে প্রশ্ন করলে যে উত্তর পাওয়া যায়, তাই করণ কারক। আলোয় আধার কাটে। - কি দিয়ে আধার কাটে? (আলোয়)। তাই এটি করণে ৭মী।

Explanation:

10% loss on selling price is what percent loss on the cost price ? Correct Answer 10% loss on cost rice is same as loss on selling price. It is usually just referred to as ''loss''.

Explanation:

The cost price of 20 articles is the same as the selling price of x articles . If the profit is 25% , then the value of x is : Correct Answer 16 Let C.P of each article be 1. ,, ,, x ,, is x S.P ,, ,, x ,, is 20 Profit = (20 - x) ∴20 - xx×100 = 25 ⇒ 2000 - 100x = 25x ⇒ 125x = 2000 ∴ x = 16