Question

Rohit's father is thrice as old as Rohit. If Rohit's present age is y, then his father's age after 15 years is 3y+15
true or false? ​

Answer 1

Answer:

Let Rohit age be x years.

Father's age will be 3x years

Ratio = x:3x

After 8 years ,

Rohit age will be = x+8

Father age will be=3x+8

Ratio=x+8 : 3x+8

Given, father will be 2.5 times

We can write it as,

(x+8) 2.5 = 3x+8

2.5x+20= 3x+8

20–8=3x-2.5x (Transposing)

16 = 0.5x

Therefore, x=32

Father present age=3x=3×32=96

After 16 years,

Son age=x+16 = 32+16=48 yrs

Father age = 3x+16=3×32+16=96+16=112yrs

Ratio=48:112

Final Ratio=6:19

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Yes it's true.

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