Playing with Numbers

The HCF of two numbers is 23 and their LCM is 1449. If one of the numbers is 161 then what is the other number?

• 107

• 106

• 167

• 207

Four bells toll at the interval of 4 , 7 , 12 & 84 seconds. The bells toll together at 7'o clock. How many times will they again toll together in 28 minutes

• 15

• 20

• 25

• 30

Which of the following is divisible by 11?

• 72493

• 82457

• 92056

• 65483

What is the sum of first ten multiples of 28

• 420

• 1008

• 1260

• 1540

Smallest composite number between 10 and 20?

• 11

• 12

• 13

• 14

Smallest prime number between 30 and 40

• 31

• 32

• 33

• 34

1870 is divisible by 22. Which two numbers nearest to 1870 are each divisible by 22?

• 1848,1892

• 1893,1914

• 1826,1914

• None of these

What is the minimum odd multiple of 37 between 500 and 700

• 517

• 508

• 555

• 629

The greatest number that will divide 445 , 572 & 699 leaving the remainder 4,5,6 respectively

• 60

• 61

• 62

• 63

Which of the following is not divisible by 4?

• 189416

• 376996

• 789022

• 789076