Number System
In a five-litre mixture of milk and water the portion of water is 30%. How much milk should be added to the mixture so that the portion of water reduces to 5% ?

25 litre
29 litre
21 litre
17 litre

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number System
There are seven boys and four girls in a row. In how many ways can they be seated in the row so that all the girls do not sit together ?

11! - 7! x 4!
11! - 8! x 4!
10! - 7! x 3!
11! - 8! x 3!

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP