self Maths Puzzle

A jar full of whisky contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced is:

Read Solution (Total 2)

ANSWER : 2/3 of whisky of first jar is replaced.

SOLUTION :

Let x part of whisky removed.
whisky removed = 40x/100
whisky added = 19x/100
Total change in whisky 40/100 - 40x/100 + 19x/100
after Equating
40/100 - 40x/100 + 19x/100 = 26/100
Or, x = 2/3
13 years agoHelpfull: Yes(8) No(0)

By the rule of alligation, we have:

Strength of first jarStrength of 2nd jar
40% Mean
Strength
26% 19%
7 14
So, ratio of 1st and 2nd quantities = 7 : 14 = 1 : 2

By the rule of alligation, we have:
11 years agoHelpfull: Yes(1) No(1)

self Other Question

How many kilogram of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs. 9.24 per kg Three m en - Sam, Cam and Laurie - are married to Carrie, Billy and Tina, butnot necessarily in the same order.Sam's wife and Billy's Husband play Carrie and Tina's husband at bridge. No wifepartners her husband and Cam does not play bridge.Who is married to Cam?