Others Maths Puzzle Numerical Ability Permutation and Combination

In what ratio should tea worth Rs 10 per kg be mixed with tea worth? 14 per kg so that the average price of the mixture may be t 11 per kg.?

Read Solution (Total 3)

ratio should be 3:1.
price of 4 kg mixture =3*10+14*1=44
av price of mixture= 44/4= Rs 11 per kg
10 years agoHelpfull: Yes(4) No(0)

3:1
If 'x' kg. of Rs 10/kg is mixed with 'y' kg. of Rs 14/kg,then
(10x+14y)/(x+y)=11, 10x+14y=11x+11y or x/y=3
10 years agoHelpfull: Yes(3) No(1)
10 14
11
3 1 -->3:1
6 years agoHelpfull: Yes(0) No(0)

Others Other Question

A 100 liters spirit water solution contains 75% spirit. Find the amount of water to be added to convert it into 60% spirit solution. A king has 1000 different type wine bottles that are very expensive. a man comes to the house of king and mix a small amount of concentrated poison (Poison is such concentrate that after tasting it a person dies immediately) in a bottle and he told to the king that he mixed poison in a bottle and died. now it is a challenge to the king to find out such bottle.
how many minimum no. of peoples required to identify such bottle.
note: Please Do not include the following cases
1. 1 probability case (the bottle you picked up contains poison)
2. 1 person case (you are supplying the amount of poison to the single person after some time(Waiting till death)).
OPTIONS ARE:
(A)8
(B)10
(C)999
(D)500
(E)Can't be determined.