CBSE Class 10 Answered
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 | 29 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 | 29 Nov, 2012, 10:20: PM
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