Bank Math

Committee X has 4 members, Committee Y has 5 members, and these committee's have no members in common. If a task force is to be formed consisting of one member of X and one member of Y, how many different task forces are possible

A piece of wire 78 cm long is bent in the form of an isosceles triangle. If the ratio of one of the equal sides to the base is 5 : 3, then what is the length of the base?

If x is 90% of y then what percent of x is y?

If the cost price is 25% of selling price, then what is the percentage of profit?

What is the profit of Tk. 650 in 6 years at the rate of profit Tk. 7.5 percent per annum?

A man spent 1/2 of his money and then lost 1/4 of the remainder. He was left with TK. 3,600. How much did he start with?

A pole 6m high casts a shadow 2√3m long on the ground, then Sun's elevation is -

In a class of 120 students numbered 1 to 120, all even numbered students opt for Physics, those whose numbers are divisible by 5 opt for Chemistry and those whose numbers are divisible by 7 opt for Math. How many opt for noun of the three subjects?

If 5% is gained by selling an article for BDT 350 than selling it for BDT 340, the cost of the article is-

In a class, the number of girls is 20% more than that of boys. The strength of the class is 66. If 4 more girls are admitted to the class, the ratio of the number of boys to that of the girls is -

The sum of 3 consecutive odd numbers is 57. The middle one is

For which value of p will the square root of 4x² - px + 9 be an integer?

If 1/y = 7/2 then 1/(y + 2) = ? 

A mixture of 20 kg of spirit and water contains 10% water. How much water must be added to this mixture to raise the percentage of water to 25%?

In a railway compartment 6 seats are vacant on a bench. In how many ways can 3 passengers sit on them?

X, Y & Z has started a business with a profit sharing ratio 7 : 8 : 9. If at the end of the year, Y gets a total of Taka 4,000 what will be Z's profit?

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

The difference of two numbers is 20% of the large number. If the smaller number is 20 then the larger number is-

A motorist must complete 180-mile trip is 4 hours. If he averages 50 miles an hour for the first three hours of the trip, how fast must (in terms of mile per hour) he travel in the last hour?

The square root of (7 + 3√5)(7 - 3√5) is: