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Divide Rs2379 into 3 parts so that their amounts after 2, 3 and 4 years respectivelymay be equal, the rate of interest being 5% per annum at simple interest. Thefirst part is(a) Rs759 (b) Rs 792 (c) Rs 818 (d) Rs 828 |
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Answer» Let the three parts be `x,y and z` respectively. Now Amount=principal amount +simple interest simple interest=`(PxxRxxT)/100` given amount on all three of them are same. =>`x+(10x)/100=y+(15y)/100=z+(20z)/100` =>`110x=115y=120z` =>`y=(110x)/115` and z=`(11x)/12` Also `x+y+z=2379` substituting values we get=>x=Rs.828. |
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