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Test Index
Ratio and Proportion Practice Test 4
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© examsnet.com
Question : 6
Total: 40
Two numbers are in the ratio 6 : 7. If 4 is subtracted from each, the new numbers are in the ratio 40 : 47. Find the difference between the two numbers.
14
13
28
27
32
Validate
Solution:
Let the numbers be 6x and 7x.
Then,
6
x
−
4
7
x
−
4
=
40
47
47(6x - 4) = 40(7x - 4)
282x - 188 = 280x - 160
2x = 28
x = 14
So, the numbers are 6x = 6 × 14 = 84 - 7x = 7 × 14 = 98
∴ Difference between the two numbers is 14
© examsnet.com
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