DRDO Multi tasking staff Model paper 7

Let the number of bags that remained in the room be ‘n’
Total weight of n bags = 14n
Total weight of (n + 2) bags = 13.5(n + 2)
Hence,
⇒ 14n + 12 + 4 = 13.5(n + 2)
⇒ 14n – 13.5n = 27 – 16
⇒ 0.5n = 11
⇒ n = 22
∴ There are 22 bags still in the room