Question

The ages of sunitha and raseeda are in ratio of 7:8 ten years from now there ages will be 9:10 find there present age

Answer 1

• Sunitha: 35
• Raseeda: 40

Explanation:

Both numbers of the ratio units used to express the ratio in ten years are 2 higher than at present. Thus, each ratio unit must stand for 5 years. That would make their current ages ...

Sunitha: 7·5 = 35

Raseeda: 8·5 = 40

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If you can't figure the answer right away from the change in ratio units, then you may need to write a couple of equations:

• s/r = 7/8
• (s+10)/(r+10) = 9/10

These can be translated to standard form, which may make some methods of solution easier:

• 7r -8s = 0
• 9r -10s = 10

These have solution (r, s) = (40, 35).