Question

24. The minimum quantity of Kerosene in liters (in
whole number) that should be mixed in a mixture
of 60 liters in which the initial ratio of Kerosene to
water is 1:4, so that the resulting mixture has 15%
Kerosene is
(a) 3
(b) 4
(C) 5
(d) This is not possible
​

Answer 1

Answer:

Total mixture = 60L

Kerosene: Water = 1: 4

Kerosene = 1/5 x 100 => 20%

and after adding only Kerosene, the quantity of Kerosene is becoming 15% which is not technically correct.

Because after adding a particular fluid, that's quantity should get increased.

so, option a is correct