Mathematics Quiz

Find the least number that when divided by 12, 15, and 18 leaves a remainder of 5 in each case.

• 185

• 175

• 180

• 95

What is the last digit of 6^23?

• 6

• 8

• 4

• 0

The product of two odd numbers is:

• Always odd

• Always even

• Sometimes odd

• None of these

What is the smallest number which, when multiplied by 9, results in a number consisting entirely of ones (like 111...)?

• 111

• 9

• 12345679

• 81

Find the smallest number which, when divided by 8, 9, and 12, leaves a remainder of 3 in each case.

• 75

• 183

• 153

• 165

The least number which when divided by 6, 9, and 12 leaves a remainder of 3 in each case is:

• 36

• 45

• 63

• 39

The HCF of two numbers is 23 and their LCM is 1449. If one of the numbers is 69, find the other number.

• 483

• 529

• 460

• 529

The LCM of two numbers is 168 and their HCF is 12. If one of the numbers is 24, find the other number.

• 84

• 36

• 48

• 72

If the HCF of two numbers 306 and 657 is expressed in the form of 306x + 657y, find the values of x and y.

• -4, 7

• 7, -4

• 4, -7

• -7, 4

If two numbers are in the ratio 3:4 and their LCM is 180, what is the larger number?

• 30

• 60

• 90

• 120