total things in vat = 64 + 32 + 16 + 8 + 4 + 2= 126
since Number of vats = 2
Number of mats in 1 vat = 2
⇒ Number of mats in 2 vats = 2 × 2 = 4
Number of cats on 1 mat = 2
⇒ Number of cats on 4 mats = 4 × 2 = 8
Number of hat with 1cat = 2
⇒ Number of hat with 8 cats = 8 × 2 = 16
Number of thin rat on 1 old hat = 2
⇒ Number of thin rat on 16 old hats = 16 × 2 = 32
Number of black bats on 1 rat = 2
⇒ Number of black bats on 32 rats = 32 × 2 = 64
so by adding 64 + 32 + 16 + 8 + 4 + 2 u will get 126