# BIHAR CGL PRE LCM & HCF QUIZ - 28

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## Question 1:

HCF and LCM of two numbers is 8 and 48 respectively. If the ratio of two numbers is $2: 3$ then the larger of the two numbers is?

## Question 2:

A forester wants to plant 81 apple trees, 243 banana trees and 216 mango trees in equal rows (in terms of number of trees). Also, he wants to make distinct rows of trees (i.e. only one type of tree in one row). The number of rows (minimum) that are required are:

## Question 3:

Three bells ring after 24 sec, 16 sec and 36 sec respectively, they all ring at 1:20 pm, at what time will they ring together next time?

## Question 4:

Find the maximum number by which 280, 400 and 580 can be completely divided?

## Question 5:

What is the sum of the largest 6 digit number which is completely divisible by $3, 4, 5$ and $6 .$

## Question 6:

The ratio of two numbers is $6: 18$ and their HCF is 81 then find LCM

## Question 7:

If the product of two numbers is 2664 and their LCM is 74 , then their HCF is:

## Question 8:

Two numbers are in ratio 3: 8 and their HCF is 7 . Their LCM is:

## Question 9:

HCF of $\frac{12}{5}, \frac{21}{6}, \frac{9}{4}$ and $\frac{18}{3}$ is :

## Question 10:

Find the LCM of 15, 25 and 125 ?