Question:For how money years should Rs. `600` be invested at `10%`p.a. in order to earn the same simple interest as is earned by investing Rs. `800` at `12%` p.a.for `5` years ?
A `6`
B `8`
C `12`
D `16`
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+ Answer
B
+ ExplanationS.I required
`= Rs.((800 xx 12 xx 5)/100)`
`= Rs. 480`
`Time = ((100 xx 480)/(600 xx 10)) years`
`= Rs. 8`