Mohshin has 5 daughters. The average age of these 5 sisters is 28 years. The youngest one is 16 years old. What was the average age of the 4 daughters before the youngest one was born?

If the LCM of two numbers is 288 and their ratio is 4 : 9, then HCF of the numbers is : 

Directions: The following Pie Chart shows the export of different food grains from India in 2010. Study the chart and answer the questions:

Of the total export of foodgrains, the percentage of crop B exported is 

The following bar graph shows the number of girls in a school over 5 years.

Find the percentage decrease in the number of girls from the year 2012 to the year 2013.

A right circular cone of largest volume is cut out from a solid wooden hemisphere. The remaining material is what percentage of the volume of the original hemisphere?

What is the compound interest on ₹24,000 for 2 years at the rate of 10% per annum, if interest is compounded annually?

If p : q : r = 1: 2: 4, then $$\sqrt{5p^{2}+q^{2}+r^{2}}$$ is equal to 

A sum of ₹4000 is lent out in two parts, one at 8% simple interest and the other at 10% simple interest. If the annual interest is ₹352. The sum lent at 8% is