Bank Math

If a, b and c are not equal to 0 or 1 and if a^x = b, b^y = c and c^z = a, then xyz is-

Look at the series: 31, 29, 24, 22, 17, ____. What number should come next?

To fill a tank, 25 buckets of water are required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present capacity?

If two coins are tossed, what is the probability of getting at least one head?

If for integer x, 5 < x < 10 and y = x + 5, what is the greatest possible value of x + y?

Find two numbers such that their mean proportional is 6 and third proportional is 20.25.

What is the greatest number of boys among whom 100 pens and 165 ice-cream can be divided equally so that no item remains left?

∠A and ∠B are supplementary angles. If ∠A = 115° then ∠B =?

What would be the measure of the perimeter of a square whose area is equal to 256 sq cm?

What is the arithmetic mean of the first 100 natural numbers?

A started a business with tk 21000 and is joined afterwards by B with tk 36000. After how many months did B join if the profits at the end of the year are divided equally?

In the given series which number comes next: 91, 86, 76, 61.....?

If 2 tables and 3 chairs cost Tk. 3500 and 3 tables and 2 chairs cost Tk. 4000, then how much does a table cost?

0.213 ÷ 0.00213 =?

(x - 1/x) = 5 হলে, (x + 1/x)² এর মান কত?

At a stationary shop, it costs Tk. 185 for 4 gel-pens, 8ball-point pens and 1 marker pen and Tk. 315 for 7 gel-pens, 15 ball-point pens and 1 marker pen. What would be the cost of 1 gel-pen, 1 ball-point pen and 1 marker pen?

A circular garden with diameter of 20 meters is surrounded by a walkway of width 1 meter. What is the area of the walkway?

There are a total of 40 dishes of rice and meat. If the ratio of the number of rice dishes to the number of meat dishes is 3 to 2, how many meat dishes are there?

A woman says, ''If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum.'' The woman's age is

৩০ × ১৬ ফুটের একটি মেঝে মেরামত করতে ২৪৯৬ টাকা ব্যয় হল। প্রতি বর্গফুটে ব্যয় কত টাকা?