## ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 7 Percentage Check Your Progress

Question 1.

Convert \(\frac{7}{24}\) into a percentage correct to foursignificant figures.

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Question 2.

Express 750 mL as a percentage of 4 litres.

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Question 3.

A football team won 9 matches out of the total number of matches they played. If their win percentage was 45, then how many matches did they play in all?

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Question 4.

In a straight student election, Rahul got 66% of the votes polled. If the defeated student got 187 votes, find the total number of votes polled.

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Question 5.

36 kg of gunpowder contains 27 kg nitre, 5.4 kg charcoal and rest sulphur. Find the percentage content of sulphur in the gunpowder.

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Question 6.

75% of the students in a class passed an exam. If 2 more students had passed the exam. 80% would have been successful. How many students are there in the class ?

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Question 7.

The monthly salary of a school teacher in 2007 was ₹12000. It increased by 10% in 2008 and again by 10% in 2009. What is his salary in 2009?

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Question 8.

Price of a commodity decreased by 10% last year and increased by 20% this year. Find the percentage change in two years.

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Question 9.

A shop gives a 15% discount. What would the sale price of each of these be?

(i) A dress marked at ₹150

(ii) A pair of shoes marked at ₹800.

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Question 10.

A refrigerator marked at ₹18000 is available for ₹17100. Find the discount given and the discount percent.

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Question 11.

Ramu purchased 20 parrots at ₹30 each. Two parrots flew away and Ramu sold the rest of the parrots at ₹40 each. Calculate the profit or loss percentage of Ramu.

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Question 12.

Reena bought two tables for ₹ 1800 each. She sold one at a loss of 8% and the other at a profit of 12%. Find the selling price of each. Also, find out the total profit or loss.

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Question 13.

Ajit bought an old car ₹78000. He spent ₹2000 on repairs and repainting the car. He sold the car to Anju at a gain of 15%. Anju sold it to Anthony at a loss of 5%. What did the car cost to Anthony?

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Question 14.

Gaurav sold an article at a profit of 12%. Had it been sold for ₹16 more, the profit would have been 20%. Find the C.P. of the article.

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Question 15.

A shopkeeper allows 8% discount on his goods and still earns a profit of 15%. If an article is sold for ₹460, find :

(i) the marked price

(ii) the cost price.

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Question 16.

Rajesh bought an A.C. for ₹38500 including 10% VAT. Find the price ofA.C. before VAT was added.

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Question 17.

A DVD player is marked for ₹3000. The shopkeeper offers 10% discount on it. If VAT is received 8%. Find the amount paid by the customer.

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