Karnataka Board Solutions for Chapter: Comparing Quantities, Exercise 3: EXERCISE 8.3

Convert each part of the ratio $3:1$ to percentage.

Convert each part of the ratio $2:3:5$ to percentage.

Convert each part of the ratio $1:4$ to percentage.

Convert each part of the ratio $1:2:5$ to percentage.

If the amount to be paid at the end of $3$ years when Principal $=₹1,200 \mathrm{at} 12\mathrm{\%} \mathrm{p}.\mathrm{a}$ is $₹k$. Find the value of $k$

If the amount to be paid at the end of $3$ years is $₹k$, when Principal $=₹7500 \mathrm{at} 5\mathrm{\%} \mathrm{p}.\mathrm{a}.$, then find the value of $k$.

What rate gives $\mathrm{Rs} 280$ as interest on a sum of $\mathrm{Rs} 56,000$ in $2$ years?

If Meena gives an interest of $₹45$ for one year at $9\%$ rate p.a. then the sum she has borrowed is $₹k$. Hence, find the value of $k$.