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Q.

The simplest form of the ratio 13.5:15 from the following options is-


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a

3:4

b

1:4

c

7:8

d

9:10 

answer is D.

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Detailed Solution

It is given that, the ratio is 13.5:15 .
Multiply the numerator and denominator of the ratio by 10, so the ratio becomes,
13.5 15 = 135 150
The HCF of 135,150 is 15 .
Divide the ratio by the HCF 15 .
13.5:15= 135÷15 150÷15 = 9 10 =9:10
The simplest form of the ratio is 9:10 .
Hence option 4) is correct.
 
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