Discussion

Explanation:

Let Ankur and Varun have Rs. 5A and Rs. A respectively.

If Ankur spends Rs. 5x every day, Varun earns Rs. x every day.

Given, (5S - 50x) / (S + 10x) = 15/7

⇒ S = 25x. 

Let their amounts be in the ratio 5 : 9, n days from the start

5S - n × 5xS + nx=125x - 5nx25x + nx=59

⇒ n = 20

∴ After 10 more days, the ratio will be 5 : 9

Hence, option (d).

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