S K Gupta and Anubhuti Gangal Solutions for Exercise 4: Chapter Assessment

What fraction is $0.6\%$

 The value of a car costing $₹ 4,50,000$ decreased by $12\%$ in the first year. How much was it worth at the end of the year?

The income of a company increases by $20\%$ per annum. If its income is $₹26,64,000$ in the year $2015$, then what is its income in $2016$?

A school team won $12$ games this year against $8$ games won last year. What is the percentage increase?

Raju saves $20\%$ of his monthly salary. If he saves $₹ 5100$ per month. If his monthly salary is $₹k$, then find the value of $k$.

Chalk contains calcium, carbon and oxygen in the ratio $10 : 3 : 12$. Find the percentage of oxygen in chalk.

$85\%$ of $20\%$ of what number is $34$?

The ratio of two numbers is $5 : 4$. If $40\%$ of the first number is $12$, then what would be $50\%$ of the second number?