Explanation:

A time study specialist has set the production rate for each worker on a job at 22 units every three hours. At this rate, what is the minimum number of workers that should be put on the job, if at least 90 units are to be produced per hour? Correct Answer 13 The rate for each worker can be expressed as 22/7 units per hour.  let, n = the number of workers needed to produce 90 units per hour, and we have: so, n(22/3) = 90 or, 22n = 270 ∴n = 270/22 = 12.2, so there must be at least 13 workers. ans: 13 workers

Explanation:

In a room, all except 18 of the people are over 50 years of age. 15 of the people in the room are under 50 years of age. If 10% of the people are at the age of 50 years, how many people are in the room> Correct Answer 30 let, Total number of people = x 50 years of age = x - 18 Under 15 years of age = 15 0.10x = x - x + 18 - 15 ∴x = 30 ans: 30

Explanation:

The study or activity of growing garden plants ---- Correct Answer Horticulture উদ্ভিদ বিজ্ঞানের যে শাখায় শোভাবর্ধনকারী উদ্ভিদ নিয়ে আলোচনা করা হয় তাকে Horticulture বা উদ্যানপালন বিদ্যা বলে।

Explanation:

A man has 72 green marbles and 108 red marbles. He decides to pack them into packets of the same size, each containing either all red of all green marbles. What is the maximum number of marbles he can put in each packet? Correct Answer 36 The maximum number of marbles in a single package is the HCF (Highest Common Factor) of 72 and 108. 72 = 2 x 2 x 2 x 3 x 3 108 = 2 x 2 x 3 x 3 x 3 ∴HCF of 72 and 108  is = 2 x 2 x 3 x 3 = 36. So the max number of marbles that can go into a package is 36. ans: 36

Explanation:

How many students can sit in a room with n single chairs and b doubleseated benches? Correct Answer 2b + n        In 1 single chair seated 1 student So, in n single chair seated  = 1 × n= n studentsAgain,       In 1 bench, seated 2 studentsSo, in b bench seated = 2 × b = 2b students So Total number of Student can be seated in this classroom is = 2b + n Ans: 2b+n

Explanation:

Molasses cost Tk. x for the first 1.5 kg at 'Prabartana'. All amount in addition to first 1.5 kg cost Tk. 50 per kg. How much does it cost to buy 5 kg molasses from 'prabartana'? Correct Answer Tk. (x+175) The cost of the first 1.5 kg of molasses is given as Tk. x.So, the cost of the remaining 5 - 1.5 = 3.5 kg of molasses will be 3.5 × 50 = Tk. 175.Therefore, the total cost of 5 kg of molasses will be:Cost of first 1.5 kg + Cost of remaining 3.5 kg= Tk. x + Tk. 175= Tk. (x + 175)Hence, the cost of 5 kg of molasses from 'Prabartana' is Tk. (x + 175).

Explanation:

Very confident in behaviour, or intended to de noticed, especially by being brightly coloured ----- Correct Answer Flamboyant Very confident in behaviour, or intended to be noticed especially by being brightly coloured is called flamboyant . Here, flamboyant mean - অতিরিক্ত সুসজিত।

Explanation:

Someone who enjoys or is good at talking with people ---- Correct Answer Conversationalist Someone who enjoys or is good at talking with people is called - Conversationalist. Here, Conversationalist meaning - সদালাপী ব্যক্তি।

Explanation:

An item is sold for $65.00 giving the retailer a profit of 30% of the cost. What will be the new retail price if the retailer cuts his profit to 10% of costs? Correct Answer $55 when sp 130 then cp 100 when sp 1 then cp. 100/130 When Sp 65 then cp 100*65/130 So Cp = 50 Therefore the new retail price = 50 + 50*10% = $55 ans:$55

Explanation:

If ab-2cd = p; 6cd-3ab=1; what is the value of p? Correct Answer -1/3 Given That ,             6cd - 3ab = 1       ⇒ 3(2cd - ab) = 1       ⇒ 2cd - ab = 13   another equation is,          ab - 2cd = p      ⇒ -1(2cd - ab)= p     ⇒ -13 = p               (putting the value of 2cd - ab) Ans: P = -13

Explanation:

How many tiles each of 1 square foot are necessary to form a 1 foot border around the inside of a 24 feet by 14 feet room? Correct Answer 72 Area of the total room = 24 x 14 = 336 sq ft Measurements of the room without the border will be (24 - 1x2) = 22 ft by (14 - 1x2) = 12 ft. Therefore, Area of the room without the border = 22 x 12 = 264 sq ft So, the area of the border = 336 - 264 = 72 sq ft. Then, the number of tiles required = 72/1 = 72.

Explanation:

Finding the Alien one from a list of words. Correct Answer Delicate Honor - সম্মান বা মান্য করা Commemorate - স্মৃতিরক্ষা করা observe - পালন করা delicate - সুস্বাদু Alien option: delicate

Explanation:

Someone who attempts to be united with God through prayer ----- Correct Answer Saint Someone who wants to be united with God through prayer is called saint . Here, saint meaning সাধু, ঋষি, পবিত্র ব্যক্তি।

Explanation:

The tailoring of globally produced products to make them suitable to local tastes and needs ---- Correct Answer Localization The tailoring of globally produced products to make them suitable to local tastes and needs is called localization. Here, localization meaning - স্থানীয়করণ /স্থানীয় রূপদান।

Explanation:

If b<2 and 2x-3b = 0, which of the following must be true? Correct Answer x < 3 Given That,     2x - 3b = 0⇒ 2x = 3b⇒ x = 3b2it's mean that if b = 2 then x = 3but b < 2 then x always less than 3 i.e x < 3

Explanation:

If x+y>4 and x<3, then y>1 is true. Correct Answer always if x+y>4 and x<3 then y>1to test the statement, let x=1 then y will be 3. that means y is always greater than 1

Explanation:

In a group of 15 high school students, 7 study Latin, 8 study French and 3 study neither Latin nor French. How many students study both Latin and French? Correct Answer 3 The number of students studying Latin or French n(LUF) = 15 - 3 = 12 Now,  n(LUF) = n(L) + n(F) - n(LꓵF) or,   n(LꓵF) = n(L) + n(F) - n(LUF) = 7 + 8 - 12 = 3

Explanation:

If point P is on line AB, which of the following is always true? Correct Answer AB > AP এখানে তিনটি বিষয় ঘটতে পারেঃ১। P যদি লাইন AB এর মাঝা মাঝি অবস্থানে অবস্থিত হয়, তবে PA=PB.২। P যদি লাইন AB এর যেকোন এক দিকের কাছাকাছি অবস্থানে অবস্থিত হয় (A এর কাছে P), তবে PA<PB.৩। P যদি লাইন AB এর যেকোন এক দিকের কাছাকাছি অবস্থানে অবস্থিত হয় (B এর কাছে P), তবে PB<PA.যেহেতু প্রশ্নে বলা নেই কোথায় অবস্থিত, সেহেতু উপরের তিনটির যেকোন একটা ঘটতে পারে। আবার যেহেতু P , AB এর উপর অবস্থিত, সেহেতু সর্বদাই AB বড় হবে AP বা BP হতে।

Explanation:

Increasing the original price of an item by 15 percent and then increasing the new price by another 15 percent is equivalent to increasing the original price by Correct Answer 32.25% Let the original price be P. Now, the new price after increasing the original price by 15% = 1.15P The final price after increasing the new price by another 15% = 1.15x1.15P = 1.3225P. So, actual increament in the original price = {1.322P - P) / P} x 100 = 32.25% [Shortcut: + 15 + 15 + (15x15)/100  = 32.25%]

Explanation:

If 4x-7 <2x+13, then which of the following must be true? Correct Answer x < 13 Here, 4x - 7 < 2x + 13 or,  4x - 2x < 13 + 7 or,  2x < 20 or,  x < 10 So, the statement x < 13 must be true.

Explanation:

If x+y>4 and x<3 then y>1 is true Correct Answer always if x+y>4 and x<3 then y>1to test the statement, let x=1 then y will be 3. that means y is always greater than 1

Explanation:

A hawker takes 1.25 hours to deliver newspapers on his route. Another hawker takes 15 minutes longer to deliver these papers on the same route. How long would it take to deliver the papers if both of them worked together? Correct Answer 40 min First hawker takes 1.25 hours or 75 minutes and second hawker takes 75 + 15 = 90 minutes. Together they can finish (1/75 + 1/90) = 11/450 part of the delivery in 1 minute. So, together they will finish the whole delivery in 1/(11/450) = 450/11 =  40.91 minutes.

Explanation:

Lines joining points (-4, 0), (0, 5) and (4, 0) will form Correct Answer an isosceles triangle Let the points be A( - 4, 0), B(0, 5) and C(4, 0). Now, AB = √{( - 4 - 0)2  + (0 - 5)2} = √41 BC = √{(0 - 4)2  + (5 - 0)2} = √41 CA = √{(4 + 4)2  + (0 - 0)2} = 8 Here, AB = BC. So, the triangle will be an isosceles triangle.

Explanation:

Eskimos hunt using a dog-driven vehicle called --- Correct Answer Sledge A sled, sledge, or sleigh is a land vehicle that slides across a surface, usually of ice or snow. It is built with either a smooth underside or a separate body supported by two or more smooth, relatively narrow, longitudinal runners similar in principle to skis.

Explanation:

The name Tom Daschle relates to --- Correct Answer Politics Thomas Andrew Daschle ; born December 9, 1947) is an American politician and lobbyist who served as a United States senator from South Dakota from 1987 to 2005. A member of the Democratic Party, he became U.S. Senate Minority Leader in 1995 and later the Majority Leader in 2001.

Explanation:

The Richter scale is used for measuring --- Correct Answer Earthquake পুরনো যুগে ব্যবহৃত ভূকম্পমাপক যন্ত্রকে সাধারণত ইংরেজিতে "সিজমোগ্রাফ" নামে ডাকা হত। অপরদিকে "সিসমোমিটার" দ্বারা বর্তমান যুগে ব্যবহৃত অত্যাধুনিক পরিমাপ এবং বিশ্লেষনের সুযোগ - সুবিধা সম্বলিত ভূকম্পমাপককে বুঝায়। আর "সিসমোগ্রাফ" বা ভূকম্পবীক্ষণ যন্ত্রের শুধুমাত্র ভূমিকম্পের উপস্থিতিরর প্রমাণ পাওয়া যায়।

Explanation:

Which is the following is a computer operating system? Correct Answer Unix The three most common operating systems for personal computers are Microsoft Windows, macOS, and Linux. Modern operating systems use a graphical user interface, or GUI (pronounced gooey).

Explanation:

Mr. Ramzan, owner of a departmental store, decided to raise the price of a particular item by exactly 10%. Of the following which cannot be the new price? Correct Answer Tk. 57.30 Let price be x The store owner decided to raise the price of a particular item by exactly 10%,  so the new price must be = x *110 /100                            = 1.1x So, The new number must be 1.1 times the original price. here, option A 10* 1.1 = 11 $ option B 8 * 1.1 = 8.80 $  option D 71 * 1.1 = 78.1 $ can be new prices Now, check option (c) 1.1x = 57.30 So, x = 57.30/1.1 ~ 52.09 (Approximately) So (C) cannot be new price

Explanation:

Jony weighs twice as much as Suzan's. Suzan's weight is 60% of Sami's weight. Manik's weight is 50% of Lynda's weight. Lynda weight 190% of Jony's weight. Which of these 5 people weight the least? Correct Answer Suzan Let J – John’s weight S – Susan’s weight M – Mark’s weight A – Sam’s weight L – Lynn’s weight According to the question, J = 2S S = 0.6A M = 0.5L L = 1.9J Let us convert these weights to one variable S = J/2 A = S/0.6 = J/1.2 = 5J/6 L = 1.9J M = 0.5 * 1.9J = 0.95J So Susan has the least weight.

Explanation:

The sum of the non-prime numbers between 40 and 50, non-inclusive, is --- Correct Answer 131 The non - prime numbers between 40 and 50 non - inclusive are 42, 44, 45, 46, 48, & 49.  The sum of these numbers = 42 + 44 + 45 + 46 + 48 + 49 = 274

Explanation:

During a sale, a furniture shop gives 50% off on the retail price of a desk. On Friday, it gives an additional 20% off on all furniture. The desk's retail price was Tk. 320. How much will the desh cost on Friday? Correct Answer Tk. 128 First Discount : 50% of 320 would be 160 Second Discount on Friday sale would be : 20% on 160 which would be 32 Over all discount given = 160 - 32 = 128 tk (ans)