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Revision Worksheet

The document contains a series of mathematical questions related to percentages, ratios, and basic arithmetic operations. It includes problems on calculating percentage decrease, population based on literacy rates, conversions between percentages and ratios, and practical applications of percentages in real-life scenarios. The questions are designed for Class 7 students to enhance their understanding of percentages and their applications.

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yashpatel06213
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21 views3 pages

Revision Worksheet

The document contains a series of mathematical questions related to percentages, ratios, and basic arithmetic operations. It includes problems on calculating percentage decrease, population based on literacy rates, conversions between percentages and ratios, and practical applications of percentages in real-life scenarios. The questions are designed for Class 7 students to enhance their understanding of percentages and their applications.

Uploaded by

yashpatel06213
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Sishya

percentage
Name :
Class 7
Date :

Question: 1
A computer costing Rs 60,000 one year ago now costs Rs 40,000. Find the percentage increase or decrease in
the price.

Question: 2
If 74% of the population of a village is illiterate and the number of literate people is 2158, then find the population
of the village.

Question: 3
Convert 14% into ratio in its simplest form.

Question: 4
What % of 150 is 30?

Question: 5
Express 15% as a ratio.

Question: 6
In an examination, Nisha obtained 312 marks out of 650. What percentage of marks did she get?

Question: 7
A water tank has a total capacity of 1550 l. If 28% of the water got drained out, how much water was left in the
tank?

Question: 8
Find the value of 70% of 80.

Question: 9

Convert as a percent.

Question: 10

is equal to ____.
Choose the correct answer:

(a) 20%
(b) 30%
(c) 24%
(d) 6%

Question: 11
There are 40 students in a class. If 60% are girls, how many are boys?

Question: 12
Rohan donated 15% of his savings to Cyclone Relief fund. He distributed the remaining among his two children
and his wife equally. If the total savings of Rohan is Rs 1,20,000, find the amount donated to the fund and the
amounts received by his wife and children.

Question: 13
In a garden, 60% are rose plants, 15% are lily plants, and the rest are marigold. If the number of lily plants is 90,
find:

(i) the total number of plants,

(ii) the number of rose plants,

(iii) the number of marigold plants.

Question: 14
Fill in the blank:

62% expressed as a decimal is ___________.

Question: 15
Raju bought a TV for Rs 10,000. He paid 25% cash money and the rest he agreed to pay in 12 equal monthly
installments. How much will he pay in each month?

Question: 16
12% of a sum of money is Rs 42.00. What is 20% of the same sum of money?

Question: 17
A 4 m elastic band is increased by 10%. Find its new length.

Question: 18
A number 4.0 is wrongly read as 4.48. Find the percentage error.
Question: 19
A number is first increased by 20% and then decreased by 10%. Find the overall change in the number as a
percent.

Question: 20
If 80 is 32% of certain number, find the number.

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