$11$ identical books weigh $4.4$ kg. How much will $33$ such books weigh?

$11$ identical books weigh $4.4$ kg. How much will $33$ such books weigh?
  1. $11.0$ kg
  2. $13.2$ kg
  3. $14.4$ kg
  4. $8.8$ kg

Solution

$33 = 3 \times 11$, so weight $= 3 \times 4.4 = 13.2$ kg.

Asked in: IMO

Practice more DIRECT AND INVERSE PROPORTIONS questions on Aicharya