DRDO Multi tasking staff Model paper 4

Initial ratio = 5 ∶ x
After adding 1 liter of water to the 4 liters of blend, the final quantity of the blend becomes 5 Liters
Final Ratio = 1 ∶ 1
⇒ Value of 2 = 5 Liters
⇒ Quantity of juice = Quantity of water in the blend = 2.5 Liters
Since the Quantity of juice is same,
⇒ Quantity of juice in initial mixture = 2.5 Liters
⇒ Quantity of water in initial mixture = 1.5 Liter
⇒ Initial total quantity = 4 Liters
4 Liters in mixed in the ratio = 2.5 ∶ 1.5 = 5 ∶ 3
∴ Value of x = 3