List of top Mathematics Questions on Use Of Percentages asked in CBSE Class VII

Find: 
  1.  15% of 250 
  2.  1% of 1 hour 
  3.  20% of Rs 2500 
  4.  75% of 1 kg
Convert given per cents to decimal fractions and also to fractions in simplest forms: 
  1.  25% 
  2.  150% 
  3.  20% 
  4.  5%
Convert each part of the ratio to percentage: 
  1.  3:1 
  2.  2:3:5 
  3.  1:4 
  4.  1:2:5
In a city, 30% are females, 40% are males and remaining are children. What per cent are children?
Find the whole quantity if 
  1.  5% of it is 600. 
  2.  12% of it is Rs 1080. 
  3.  40% of it is 500 km. 
  4.  70% of it is 14 minutes.
  5. (e) 8% of it is 40 litres
  1. Chalk contains calcium, carbon and oxygen in the ratio \(10:3:12\). Find the percentage of carbon in chalk. 
  2.  If in a stick of chalk, carbon is \(3\) g, what is the weight of the chalk stick?
The population of a city decreased from 25,000 to 24,500. Find the percentage decrease.
A local cricket team played 20 matches in one season. It won 25% of them. How many matches did they win?
Meeta saves Rs 400 from her salary. If this is 10% of her salary. What is her salary?
Out of 15, 000 voters in a constituency, 60% voted. Find the percentage of voters who did not vote. Can you now find how many actually did not vote?