Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

The sum of LCM and HCF of two numbers is 150 and LCM is 24 times the HCF. If one of the two numbers is 144, then the other number is?

**A**

6.

**B**

8.

**C**

7.

**D**

9.

**Soln.**

**Ans: a**

Let L be the LCM, and H the HCF. Then H + L = 150, and L = 24H. Solving these for H, we get H = $150/{24 + 1}$ = 6, and L = 144. The product of the two numbers is equal to the product of the lcm and hcf = 6 × 144 = 864. The other number is 864/144 = 6.

### Question 2

What is the HCF of (12 × 17), (17 × 4) and (4 × 12)?

### Question 3

Find the least possible number that can be divided by 9, 18 as well as 108?

### Question 4

What is the HCF of $3{2/5}$, $1{2/7}$ and $1{1/5}$?

### Question 5

The LCM and HCF of two numbers 6 and 84 are in the ratio?

This Blog Post/Article "HCF and LCM Quiz Set 019" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2019-08-18.