Question

3/4 of a piece of metal has a mass of 15kg.what is the mass of 2/5 of the piece of metal

Answer 1

Answer:

Step-by-step explanation-

3/4=15

let,

total mass is x

x=4×15/3

=20 kg

so, total mass = 20 kg

=2×20/5

=2×4

=8 kg

Answer 2

Answer:

The correct answer is 8 kg.

Explanation:-

Total no. of parts of metal=4

Let every part be x

3x=15 kg

Then x= 15/3 =5 kg

4x =20 kg

⛬ If there are 5 parts

5x =20 kg

x =4kg

So, 2 parts 2x =8 kg

Hence,the mass of 2/5 of the piece of metal is 8 kg.

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