Bank Math

a, b and c are positive integers. If b equals the square root of a, and if c equals the sum of a and b, which of the following could be the value of c?

If one factor of 2a⁴ - 5a³ + 6a² - 5a + 2 is (a - 1), what the other factor?

In a certain English class, (1/4) of the number of girls is equal to (1/6) of the total number of students. What is the ratio of the number of boys to the number of girls in the class?

A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 percent larger than the original. By what percentage has the area of the logo increased?

If the salary of an employee is reduced by 10 percent for his late attendance and then increased by 10 percent can a pardon, how much does he lose?

In how many different orders can 8 different colors of flowers be arranged in a straight line?

In an acute angled triangle ABC, if sin 2(A + B - C) = 1 and tan (B + C - A) = √3,then the value of angle ∠B is-

Jerin has 40% more books than Rashed. However, if she gives 45 of her books to Rashed, then Rashed will have 10% more books than Jerin. How many books did Jerin begin with?

If A is an integer, which of the following can’t be inferred from the statement below?

After being dropped a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reaches a height of 125 inches. How high (In inches) will it reach after its fourth bounce?

By walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than usual. His usual time is:

a² + 3ab = 145. If a = 5, then what is the value of b²?

If the numerator of a fraction is increased by 2 and the denominator by 1 it becomes 1. Again, if the numerator decreased by 4 and the denominator by 2 it becomes 1/2. Find the fraction.

How long will it take for an amount of taka 450 to yield taka 81 as interest at 4.5% per annum of simple interest?

Find the x intercept of this equation: 2x + 3y = 12 

সকাল ছয়টার সময় ঘণ্টার কাটা ও মিনিটের কাটার মধ্যে কোণের পরিমাপ কত?

x, y and z are consecutive positive integers such that x < y < z . If the units digit of x² is 6 and the units digit of y² is 9, what is the units digit of x²?

ঘণ্টায় ৬০ কিলোমিটার বেগে ১০০ মিটার দীর্ঘ একটি ট্রেনের ৩০০ মিটার দীর্ঘ একটি প্লাটফর্ম অতিক্রম করতে কত সময় লাগবে?

The value of - 4 - (- 10) is how much greater than the value of - 10 -(- 4)?

A class starts at 10.00 am and lasts till 01.30 pm. Four periods are held during this interval. After every period, 10 minutes are given free to the students. What is the exact duration of each period?