In a division sum, the divisor is 4 times the quotient and twice the remainder. If a and b are respectively the divisor and the dividend, then

If 738A6A is divisible by 11, then the value of A is

• 6

• 3

• 9

• 9

The product of two number is 1575 and their quotient is 9/7. Then the sum of the numbers is

• 74

• 78

• 80

• 80

The value of  is

• 3

• 6

• 9

• 9

• 2

• 5

• 4

• 4

The sum of the squares of two natural consecutive odd numbers is 394. The sum of the numbers is

• 24

• 32

• 40

• 40

When (67⁶⁷ + 67) is divided by 68, the remainder is

• 1

• 63

• 66

• 66

A can do a piece of work in 24 days, B in 52 days and C in 64 days. All begin to do it together, but A leaves after 6 days and B leaves 6 days before the completion of the work. How many days did the work last?

• 720/29

• 20

• 18

• 18

The square root of:
 is 

• 1

• 2

• 3

• 3

Given that  the value of  is

• 70.4

• 70.464

• 71.104

• 71.104