Ratio and Proportion Practice Test 3

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Question : 37 of 40

Marks: +1, -0

If 35% of a number is equal to four-fifths of another number, what is the ratio of the first number to the second number?

15 : 8
16 : 7
12 : 9
13 : 10
8 : 7

Solution:

Let 35 of A =

4/ 5

of B
Then,

{35A}/100={4B}/5

A=(4/5×100/35)B

A=16/7B

7A = 16B

A/B=16/7

∴A:B=16:7

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