Question

4. A family consumes 8 units of 1electricity in a month. How many joules of electricity do they consume in a month?a . 3.6 x 106 J
b. 28.8 x 106 KW
c.3.6 x 106 KW •
d.28.8 x 106 J​

Answer 1

A family consumes 8units of electricity per month

We have to convert it into Joules

$\boxed{\sf 1unit=3.6\times 10^6J}$

Now

$\\ \sf\longmapsto 8units=8(3.6\times 10^6)$

$\\ \sf\longmapsto 8units=8(3.6)\times 10^6$

$\\ \sf\longmapsto 8units=28.8\times 10^6J$