Question

One year ago, the ratio of Gaurav's and Sachin's age was 6:7 respectively. Four years
hence, this ratio would become 7:8. How old is Sachin?


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Answer 1

Given :-

• Ratio of Gaurav and Sachin age = 6:7

• After 4 years ratio becomes 7:8

To Find :-

• Age of Sachin

Solution :-

Let their present ages be 6x and 7x

After 4 years

6x + 4/7x + 4 = 7/8

7(7x + 4) = 8(6x + 4)

$(7 × 7x) + (7 × 4) =$

49x + 28 = 48x + 32

49x - 48x = 32 - 28

x = 4

Present age of Sachin's

$\sf 7 \times 47×4$

$\tt 28 \; years$

Answer 2

Answer:

sachin is 14 years

Step-by-step explanation:

ratio 6:7

after 4 years 6x+4,7×+4

6x+4/7x+4=7/8

cross multiplication

48x+32=49x+28

48x-49x=28-32

-x=-4

x=4

sachins age is 7x=7×4=28