From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done? A. 564                   B. 645 C. 735     […]

A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day? A. 12 days                B. 15 days C. 16 days   […]

A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform? A. 120 m B. 240 m C. 300 m D. None of these

The ratio between two numbers is 3:4 and their LCM is 180 . The first number is A 60 B 45 C 15 D 20

Mr.Williams invested a total of $12,000 for a one year period. Part of the money was invested at 5% simple interest ,and the rest was invested at 12% simple interest .If he earned a total of $880 in interest for the year, how much of the money was invested at 12%. A $1,920 B $ […]

8. If the numerator of a fraction is decreased 25% and the denominator of that fraction is increased 25% , then the difference between the resulting and the original fractions represents what percentage decrease ? A 40% B 45% C 50% D 60% E 75%

If interest on a saving account is paid monthly at an annual rate of 25/4% and if the interest is not reinvested, then in how many years will the total amount of interest earned equal the amount of money saved in the account? A 36 B 24 C 18 D 16 E 12