How much pure alcohol should be added to 400 ml of a 15% strength to make its strength 32% ?
A 50 ml
B 75 ml
C 100 ml
D 150 ml
how come the ans is 100ml
Didn't understand why am I wrong for this question
I don't understand
Chetna knows that 3 dogs are given 10 cups of food and 4 dogs are given 15 cups of food. How much food will be given to dogs?
A 15 cups
B 18 cups
C 20 cups
D 25 cups
the question does not tell how many dogs the food is given to?
The numbers which have more than two factors are called
(C) Both (A) and (B)
(D) None of these
How can a prime have more than two factors ?
A and B together have Rs. 1210. If 4/15 of A's amount is equal to 2/5 of B's amount, how much amount does B have?