Alligation or Mixture problems
The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?

None of these
14 and 16
17 and 27
13 and 27

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Alligation or Mixture problems
The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs.20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is

Rs. 19
Rs. 19.50
Rs. 18.50
Rs. 18

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Alligation or Mixture problems
In a mixture of 60 liters, the ratio of milk and water is 2 : 1. If the ratio of the milk and water is to be 1 : 2, then the amount of water to be further added is ?

20 litres
60 litres
30 litres
40 litres

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP