Question

20
3. A jar has 40 L milk. From the jar, 8 L of
milk was taken out and replaced by an
equal quantity of water. If 8 L of the
newly formed mixture is taken out of the
jar, what is the final quantity of milk left
in the jar?
[1BPS SO 2016)
(a) 32.5 L
(b) 30 L
(c) 25.6 L
(d) 24.2 L
(e) 24 L​

Answer 1

25.6

Step-by-step explanation:

(8L milk is taken out and equal Qty. of water is Added i.e. 32L milk and 8L water)

Ratio of New solution is=

Milk : Water = 32 : 8

M : W = 4 : 1

{Ratio remains same in mixture)

After taking out 8L From this Mixture

we have 32L left and Qty. of Milk in this 32 L mixture will be

(4/5) × 32 = 25.6