Capgemini Company Numerical Ability Alligation or Mixture

A man buys spirit at Rs. 60 per liter and adds water to it. Then he sells it at Rs. 75 per liter. What is the ratio of spirit to water if his profit in the deal is 37.5%?
A)11:1 B)10:1 C)9:1 D)None of these

Read Solution (Total 2)

Let us assume he mix x liter of water per liter of spirits.So total volume is 1+x liters. Total cost=60. And sale amt is (1+x)*75 =1.375*60=82.5 or 75x=82.5–75=7.5 or x=.1 . So ratio of spirit to water is 10:1.
4 years agoHelpfull: Yes(2) No(0)

Mixture and alligation

CP water=0
CP spirit=60
Mean CP=(100/100+37.5)*75=600/11

60 0
600/11
600/11 60/11
10 : 1

600/11-0=600/11
60-600/11=60/11
4 years agoHelpfull: Yes(1) No(0)

Capgemini Other Question

A milk vendor has two cans of milk. The first contains 30% water and the rest milk. The second contains 40% water. How much milk should he mix from each of the containers so as to get 16 litres of milk such that the ratio of water to milk is 4:5?
A)4 litres, 12 litres B)8 litres, 8 litres C)10 litres, 6 litres D)9 litres, 7 litres E)None of these How many four letter words with or without meaning, can be formed out of the letters of the word, LOGARITHMS, if repetition of letters is not allowed?
A)5040 B)4080 C)540 D)2520