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SAI INTERNATIONAL SCHOOL
CLASS – VII,
SUB: MATHS
CHAPTER-8: COMPARING QUANTITIES
SUBTOPIC: USES OF PERCENTAGES, CONVERTING PERCENTAGE TO ‘HOW
MANY’
HOME ASSSIGNMENT
1. Out of a salary of Rs 4500, I kept 1/3 as savings. Out of the remaining money, I
spend 50 % on food and 20 % on house rent. How much do I spend on food and house
rent?
2. A certain school has 120 teachers. If this constitutes 30% of its workforce, find the
number of employees in the school.
3. Rachael gets 94 marks in her exams. These are 47% of the total marks. Find the
maximum number of marks.
4. A tank can hold 50 litres of water. At present, it is only 30 % full. How many litres of
water shall I pit in the tank, so that it is 50 % full?
5. Pat's income is 20 % more than Adam. How much percent is Adam's income less
than Pat's?
6. There are 80 coins of Rs 5 in the purse. These coins constitute 20 % of its total coins.
How many coins are there in the purse?
7. Mack requires 40 % to pass. If he gets 190 marks and falls short by 10 marks, what
are the maximum marks he could have got?
8. There are 442 boy students in class VIII. If 15% of the students are girls, find the total
number of students in class VIII.
9. Ron scored 20 out of 25 marks in English, 30 out of 40 marks in Science and 68 out
of 80 marks in mathematics. In which subject his percentage of marks is best?
10. Max requires 50 % to pass. If he gets 280 marks and falls short by 20 marks, what
were the maximum marks he could have got?