48. In what proportion must water be
mixed with milk to gain 20 % by selling it at cost price ?
Solution : Let
cost price of milk be Rs 1 per liter, then S.P of mixture is also Rs 1 per
liter
Now CP of mixture be = 1 - ( 20 % of Rs 1 ) = 1 -( 20 * 1 / 100 ) = 80 / 100 =
Rs 4 / 5
Required ratio = 1 : 4
Title :
Alligation Q48
Description : 48. In what proportion must water be mixed with milk to gain 20 % by selling it at cost price ? Solution : Let cost price of mil...
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