R S Aggarwal Solutions for Chapter: Rational Numbers, Exercise 6: EXERCISE 4F

By what number should $\frac{-8}{15}$ be multiplied to get $24$?

The product of two rational numbers is $10$. If one of the numbers is $-8$, find the other.

The product of two rational numbers is $-9$. If one of the numbers is $-12$, find the other.

The product of two rational numbers is $\frac{-16}{9}$. If one of the numbers is $\frac{-4}{3}$, find the other.

By what rational number should $\frac{-8}{39}$ be multiplied to obtain $\frac{5}{26}$?

If $24$ pairs of trousers of equal size can be prepared with $54 \mathrm{m}$ of cloth, what length of cloth is required for each pair of trousers?

How many pieces, each of length $3\frac{3}{4} \mathrm{m}$, can be cut from a rope of length $30 \mathrm{m}$?

The cost of $2\frac{1}{2} \mathrm{m}$ of cloth is $₹78\frac{3}{4}$. The cost of cloth per metre is $₹k$, Find the value of $k$.