CBSE Class 7 Mathematics Comparing Quantities Worksheet Set 04

CBSE Class 7 Maths Worksheet - Comparing Quantities (3)

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Question. Ram bought 5 kg potatoes and Vineet bought 3 kg 500 g potatoes. Find the ratio of Ram’s and Vineet’s potatoes.
Answer : 10 : 7

Question. If 3 : x : : 9 : 15, find x.
Answer : 5

Question. In what time will Rs. 2,700 will double itself if rate of interest is 4% p.a?
Answer : 25 years

Question. If the angles of a triangle are in the ratio 1 : 2 : 3, find the value of each angle.
Answer : 30º, 60º, 90º

Question. Find interest and amount when Principal = Rs. 1000, Rate = 5% p.a., Time = 3 years.
Answer : I = Rs. 150, A = Rs. 1150

Question. A school team won 7 games this year against 5 games won last year. What is the percent increase?
Answer : 40%

Question. Out of 400 oranges, 80 oranges are found rotten. Find the ratio of rotten oranges to good oranges.
Answer : 1 : 4

Question. Express the following percentage as fraction in its lowest form :
(a) 75%
(b) 20%
(c) 6%
Answer : (a) = 3/4 (b) = 1/5 (c) = 3/50

Question. What percent of Rs. 150 is Rs. 30?
Answer : 20%

Question. Ram buys an old house for Rs. 3,00,000. He spends Rs. 20% of the cost price on its repairs and sells it for Rs. 4,50,000. Find his gain or loss percent.
Answer : Gain 25%

Question. Chalk contains calcium, carbon and oxygen in the ratio of 10 : 3 : 12. Find the percentage of carbon in chalk.
Answer : 12%

Question. An electronics dealer buys a radio for Rs. 225 and spends Rs. 15 on transporting it to his shop. If he sells the radio for Rs. 300. Find his profit percent.
Answer : 25%

Question. Kapil bought a sofa set for Rs. 4500 and sold it for Rs. 4,200. Find his loss percent.
Answer : 6(2/3)%

Question. The selling price of an article is 4/5 of its cost price. Find the loss percent.
Answer : 20%

Question. Find interest and amount when Principal = Rs. 200, Rate = 12% p.a., Time = 6 months.
Answer : I = Rs. 12; A = Rs. 212

Question. Ram buys a coloured TV for Rs. 10,000 and sells it for Rs. 12,000. Find his gain %.
Answer : 20%

Question. There are 13 boys and 12 girls in the class. What is the percentage of girls in the class?
Answer : 48%

Question. Find simple interest on the sum of Rs. 800 for 2.5 years at 4.5% p.a.
Answer : Rs. 90

Question. In a fruit basket, 50% are apples, 25% are oranges and remaining are bananas. Find the % of bananas.
Answer : 25%

Question. Calculate the time if Principal = Rs. 2500, Simple Interest = Rs. 625, Rate of Interest = 5% p.a.
Answer : 5 years

Question. Calculate the rate of interest if Principal = Rs. 5000, S.I. = Rs. 700, Time = 2 years.
Answer : 7% p.a.

Question. Rs. 600 are invested at 5% simple interest p.a. In how much time will it double itself ?
Answer : 20 years

Question. A farmer bought a cow for Rs. 12,000 and sold it at a gain of 10%. Find the S.P. of the cow.
Answer : Rs. 13,200

Question. A shop has 500 bulbs out of which 10 are defective. What percent of bulbs are defective?
Answer : 2%

Question. At what rate percent per annum will Rs. 800 amount to Rs. 1000 in 5 years?
Answer : 5%

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