## sandeep is younger than dikshith by 4 years. if their age are in the ratio of 7:9, how old is dikshith?​

Question

sandeep is younger than dikshith by 4 years. if their age are in the ratio of 7:9, how old is dikshith?​

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2 months 2021-10-05T04:00:06+00:00 2 Answers 0 views 0

1. Given : sandeep is younger than dikshith by 4 years. their age are in the ratio of 7:9,

To find : how old is dikshith?​

Solution:

Let say Dikshith age is   = D years

sandeep is younger than dikshith by 4 years

=> Sandeep age =  D – 4 years

their age are in the ratio of 7:9

=> (D – 4)/D  = 7/9

=> 9(D – 4) = 7D

=> 9D – 36 = 7D

=> 2D = 36

=> D = 18

Dikshith is 18 years old

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2. Given :

Sandeep is younger than Dikshith by 4 years .

Age ratio = 7 : 9

To find :

Age of Dikshith .

Solution :

Let the age of Dikshith be x .

Then , the age of Sandeep = x – 4

Age ratio = 7 : 9

=> ( x – 4 ) / x = 7 / 9

=> 9x – 36 = 7x

=> 2x = 36

=> x = 18

The age of Dikshith is 18 year .