If the product of two positive numbers is 1575 and their ratio is 7 : 9, then the greater number is 

• 45

• 35

• 135

• 135

Find the sum of all positive multiples of 3 less than 50

• 400

• 404

• 408

• 408

What is the smallest number by which 625 must be divided so that the quotient is a perfect cube?

• 25

• 5

• 2

• 2

The unit digit in 3 x 38 x 537 x 1256 is

• 4

• 2

• 6

• 6

When 335 is added to 5A7, the result is 8B2. 8B2 is divisible by 3. What is the largest possible value of A?

• 8

• 2

• 1

• 1

Which one of the numbers is divisible by 25?

• 303310

• 373355

• 303375

• 303375

The greatest 4-digit number exactly number by 10, 15, 20 is

• 9990

• 9960

• 9980

• 9980

28.

The odd term in the sequence
0, 7, 26, 63, 124, 217 is

• 217

• 7

• 26

• 26

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