A certain sum of money was invested which amounted to ₹9000 at 4% p.a simple interest in 3 year. What will it amount in 6 years at 10% p.a simple interest?
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let principal =x
then,
9000=[{(x×4×3)/100}+x]
#9000=112x/100
#900000=112x
#900000/112=x
therefore x=8035.71429
therefore, the amount after 6 years at 10%= [{(8035.71429×6×10)/100}+8035.71429]
=₹12,857.1429(answer)
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