R. Gupta Solutions for Chapter: HCF and LCM, Exercise 1: Multiple Choice Questions

Which of the following fractions is the greatest of all?
$\frac{7}{8} ,\frac{6}{7} ,\frac{4}{5} ,\frac{5}{6}$.

Which of the following is in ascending order? 

HCF of three numbers is $12$. If they are in the ratio$1:2:3$, the numbers are:

The total number of prime factors of the product $(8{)}^{20} \times (15{)}^{24} \times (7{)}^{15}$ is: 

The LCM of two numbers is $85$ and their product is $1020$. Their HCF will be:

HCF of $420, 315$ and $462$ is: 

Two numbers are in the ratio of$8 : 15$. If their HCF is $4$, the numbers are: 

Three bells ring respectively at an interval of $15$ seconds, $20$ seconds and $24$ seconds. If they ring continuously for$12$ minutes then how many times during this period, will they ring together?