: Ratio Proportion problems made easy #IndiaNEWS #Education Today Hyderabad: This article is in continuation to the last article focusing on the ratio and proportion topic. Here are some practice questions
Ratio Proportion problems made easy #IndiaNEWS #Education Today
Hyderabad: This article is in continuation to the last article focusing on the ratio and proportion topic. Here are some practice questions along with solutions that will help you in your preparation for the State government recruitment tests.
1. The present age of two persons is 36 and 50 years respectively. If after n years the ratio of their age will be 3 : 4, then the value of n is?
a) 3 b) 4 c) 5 d) 6
Ans: d
Solution: (36 n) / (50 n) = 3/4
=>;144 4n = 150 3n
=>; 4n – 3n = 150 – 144
=>; n = 6
2. The ratio between Samrat’s and Abhay’s age at present is 2 : 3. Samrat is 6 years younger than Abhay. The ratio of Samrat’s age to Abhay’s age after 6 years will be?
a) 3 : 4 b) 2 : 3 c) 1 : 2 d) 4 : 5
Ans: a
Solution: Samrat’s present age = 2x years
Abhay’s present age = 3x years
?3x – 2x = 6
x = 6
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w( 2G3fwC73fwCsMմѡȁ̀(啅(ă啅(иQɅѥ́ݼͽ́̀Ԁ䁅ѡѡ́ɕѕȁѡѡѡȁ啅̸Qմѡȁ́啅ȁ))聄)MѥЁͽ啅)͕ͽ啅)ɑѼѡՕѥ(Lx)+Sum of their ages
= 5x 9x = 14x
= 14 × 10 = 140 years
5. The current ages of Samanvitha and Advika are in the ratio 5 : 3. Five years from now, their ages will be in the ratio 10 : 7. Then, Advika’s current age is?
a) 4 years b) 15 years c) 10 years d) 9 years
Ans: d
Solution: Samanvitha’s present age = 5x years
Advika’s present age = 3x years
According to the question,
After 5 years,
(5x 5) / (3x 5) = 10/7
=>; (x 1) / (3x 5) = 2/7
=>; 7x 7 = 6x 10
=>; 7x – 6x = 10 – 7
=>; x = 3
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