Math, asked by mohana605gouri, 3 months ago

the ratio of the ages of Vijay and sanjay ,6 years ago was 7:2. four year from now ,the ratio of their age will be 8:3 what is the current age of vijay

Answers

Answered by myankvishwakarma25
0

Answer:

दो अंको की संख्या का धन 3 अंकों वाली संख्या हो सकती है

Answered by Sanudeep
0

Step-by-step explanation:

let the age of vijay 6 yrs ago be x

since, ratio of their ages= 7:2

therefore age of sanjay 6yrs ago= 2x/7

present age of vijay= x+6

present age of sanjay= 2x/7 + 6

= (2x + 42)/7

therefore age of vijay 4 yrs after = x + 10

therefore age of sanjay 4 yrs after = (2x + 60)/7

A.T.Q.

 \frac{x + 10}{ \frac{2x + 70}{7} }  =  \frac{8}{3}  \\  =  >  \frac{7x + 70}{2x + 70}  =  \frac{8}{3}  \\  =  > 21x + 210 = 16x + 560 \\  =  > 21x - 16x = 560 - 210 \\  =  > 5x = 350 \\  =  > x = 70

therefore age of vijay =76

age of sanjay = (140-42)/7

= 98/7

= 14

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