Kusum Shivaram and Pratima Rao Solutions for Chapter: Rapid Fire 2, Exercise 1: RAPID FIRE

Simplify: $\left(\frac{2}{5}+2\right)\left(4-\frac{2}{3}\right)$

Express these ratios in their simplest form: $5:80=$

Express these ratios in their simplest form: $4:0.80=$

_____$:12::7:3.$

Complete the following proportions: $9:13::$_____$:52$

Write a proportion statement using any four numbers from the given set: $12, 15, 3, 5, 20$

$10$ notebooks cost $₹530$. The cost of $15$ notebooks is $₹$ _____.

$8$ litres of petrol costs $₹624$. If the cost of $12$ litres of petrol is $₹k$, then the value of $k$ is _____.