Question

The weight of 1 coin is 11g



(a) How many coins will weigh 1.76kg ?

(b) What is the weight of 25 coins? ​

Answer 1

Answer:

Unitary method.

1.76 kg= 1.76*1000=1760gram.

11 gram is the weight of 1 coin.

1 gram is the weight of 1/11 coins.

So 1760 gram is the weight of 1/11 *1760 coins

= 160coins.

Hope it helps.

Answer 2

Answer:

a)1.76×1000/11=0.16×1000=160coins

b)25×11=275g=0.275kg

hope it may help you