Let x be the least number, which when divided by 5, 6, 7 and 8 leaves a remainder 3 in each case but when divided by 9 leaves no remainder. The sum of digits is

• 21

• 22

• 18

• 18

The smallest fraction, which should be added to the sum of  and  to make the result as a whole number, is

Which of the following is correct?

Three bells ring at intervals of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a particular time. They will ring together after every

• 6 minutes

• 12 minutes

• 18 minutes

• 18 minutes

In a division sum, the divisor 'd' is 10 times the quotient 'q' and 5 times the remainder 'r'. If r = 46, the dividend will be

• 5042

• 5328

• 5336

• 5336

The largest number of four digits exactly divisible by 88 is

• 9988

• 9944

• 8888

• 8888

27.

The LCM of two prime numbers x and y, (x > y) is 161. The value of (3y - x)

• -2

• -1

• 1

• 1

In a school, 391 boys and 323 girls have been divided into the largest possible equal classes, so that each class of boys numbers the same as each class of girls. What is the number of classes?

• 23

• 19

• 44

• 44

The least number to be added to 13851 to get a number which is divisible by 87 is

• 18

• 43

• 54

• 54

The least number that must be subtracted from 1294 so that the remainder when divided by 9, 11, 13 will leave in each case the same remainder is 

• 2

• 3

• 1

• 4