Question

maths solutions please help me pls ​

Answer 1

Answer :

Let their present age be 4a and 5a.

After 8 years, their ages will be (4a+8) and (5a+8)

Ratio would be (4a+8) : (5a+8)

But this ratio is given to be 5:6. Therefore

(4a+8) : (5a+8) = 5:6

solve this (4a+8) / (5a+8) = 5/6

=> 6 x (4a+8) = (5a+8) x 5

=> 24a + 48 = 25a + 40

=> a = 8

So their present age would be

4a = 4x8 = 32

5a = 5x8 = 40

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Answer 2

Answer:

4x+5/5x+5)=5/6

24x+30=25x+25

x=5

therefore rishi is 4x= 20

raj = 25