Shikha and Riya are friends and their ages differ by 2 years. Shikha's father Rajiv is twice as old as shikha and riya is twice as old as her sister Maya. The age of Rajiv and Maya differ by 40 years. Then the age of Shikha and Riya respectively are?

Asked by  | 29th Nov, 2012, 09:02: PM

Expert Answer:

Let age of sikha be X.
Therefor, age ofriya=X±2
Rajiv's age=2X
Maya's age=(X±2)/2
2X-(X±2)/2=40
(4X-X-±2)/2=40
3X±2=80
X=26 or 82/3
Therefor age of shikha and riya are 26 and 24  OR  82/3 and 88/3.

Answered by  | 29th Nov, 2012, 10:20: PM

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