sonu buys 40kg of eheat at 12.50 per kg and 30 kg of wheat at 14 per kg at what rate per kg should he sell the mixture to gain 5% find his gain per cent in the whole
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total money used is 40*12.5+30*14
=500+420
=920
then if he has to gain 5%increment
then amount will be 920*5%
=46
so means there are so many chance according to our will
if we increments the rate of 12.5 rate wheat by .5 then we have 20 rupees
now increments the rate by .86 of 14 rupees rate wheat then we have approx we have 26 more
so 20+26=46 me we gain 5%profit
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