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A man invested 20000,partly in 5% and partly in 4% deposits.If his total income is Rs.890, what sums did he invest.
Read Solution (Total 5)
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- 5%*x+4%*y=890...(1)
x+y=20000...(2)
solve 1 and 2
x=9000,y=11000 - 11 years agoHelpfull: Yes(12) No(0)
- Answer is
9000 Rs @ 5%
and 11000 Rs @ 4% - 11 years agoHelpfull: Yes(4) No(0)
- he invests 9000 in 5% deposit to get a annual return of rs. 450 and 11000 in 4% deposit to get an annual return of rs. 440.
giving a total annual return of rs. 890.
this is a hit and trial method. start by dividing the amount in half which will give the annual return as rs.900 ,as the asked return is less, increase the 4% deposit and decrease the 5% deposit. - 11 years agoHelpfull: Yes(2) No(0)
- ans=9000,11000
- 11 years agoHelpfull: Yes(0) No(0)
- 9000,11000
- 11 years agoHelpfull: Yes(0) No(0)
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