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  • Two numbers are in the ratio 12:17, if 20 is added to each they are in the ratio 16:21.
Question 1:
Two numbers are in the ratio 12:17, if 20 is added to each they are in the ratio 16:21. Find the two numbers.
A. 60 and 85
Feedback Numbers are in the ratio 12 : 17
Two numbers are 12k and 17k
Adding 20 to both the numbers, 12k+20 and 17k+20
Given that 12k+20 : 17k+20 = 16 : 21 => 21(12k+20) = 16(17k+20) => (252-272)k = 20 x (-5) => k = 5
First Number, 12 x k = 60 Second Number17 x k = 85
Numbers are 60 and 85
B. 60 and 75
C. 48 and 85
D. 160 and 210

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Practice Ratios and Proportions Online Test 6 | Englishfreetest.com