1000+ Aptitude Questions and Answers for IT Companies - 1

Question: 1

Three numbers are in the ratio 1 : 2 : 3 and their HCF is 12. The numbers are

(A) 4, 8, 12

(B) 5, 10, 15

(C) 12, 24, 36

(D) 10, 20, 30

Question: 2

Three bells ring together and they will ring at intervals of 6 seconds, 7 seconds and 8 seconds respectively. After what interval will they again ring together?

(A) 164 seconds

(B) 168 seconds

(C) 174 seconds

(D) 178 seconds

Question: 3

The LCM of 2² × 3² × 5 × 11, 2⁴ × 3⁴ × 5² × 7
and 2⁵ × 3³ × 5² × 7² × 11 is

(A) 2³ × 3² × 5

(B) 2⁵ × 3⁴ × 5²

(C) 2³ × 3² × 5 × 7 × 11

(D) 2⁵ × 3⁵ × 5³ × 7² × 11

Question: 4

The HCF and LCM of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is

(A) 77

(B) 88

(C) 99

(D) 110

Question: 5

The HCF of two numbers is 8. Which one of the following can never be their LCM?

(A) 24

(B) 48

(C) 60

(D) 56