Bank Math

Which of the following is the average of first five prime numbers?

The length of room is 1.5 times of its breadth. If the area of the room is 216 sq. meters , what is the perimeter of the room?

Arif is 4 times as old as Bobby. In 6 years, Bobby will be twice as old as Sami. Four years from now Arif will be 36 years old, how old will Sami be in 6 years?

If the length of rectangle B and the width of rectangle A is one-half the width of rectangle B, what is the ratio of the area of rectangle A to the area of rectangle B?

A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks, how many of them were correct?

If (x/y) + (y/x) = √7 then what is the value of (x⁴/y⁴) + (y⁴/x⁴) ?

A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?

একটি বর্গের বাহুর দৈর্ঘ্য দ্বিগুণ বৃদ্ধি হলে তার ক্ষেত্রফল কতগুণ বৃদ্ধি পাবে?

Sum one of the interior angles of parallelogram is _____  degree. 

In a business A and C invested amounts in the ratio 2 : 1 whereas A and B invested amounts in the ratio 3 : 2 . If their annual profit be Tk. 157300, then B's share in the profit is -

A room 5m × 8m is to be carpeted leaving a margin of 10 cm from each wall. If the cost of the carpet is Tk. 18 per sq. meter, the cost of carpeting the room will be :

A father said to his son, I was as old as you are at the present at the time of your birth. If the father's age is 42 years now, the son's age four years back was -

Solve for x if 16x-4 = 68+7x.

A person saves Tk. 5000 in his bank account. If the bank gives 10% annual profit, how much will be his balance after 6 years?

The average of the two-digit numbers which remain the same when the digits interchange their positions is-

How many prime numbers are there between 56 and 100?

A and B can do a work in 12 days. B and C can do it in 15 days. A and C can do it in 20 days. If all of them work together, in how many days can they finish the work?

If |x - 1| = 2x, what is the value of x?

Samir is twice as old as Babul was two years ago. If the difference between their ages is 2 years, how old is Samir now?

Questions (36-60) : Choose the correct answer.
৩৬) A garden of 100 m length and 60m width has a walkway of 2 m width on every side. What is the area of the garden, in square meter, excluding the walkway?