Question

6.
A body covers 20 m in 1st second, 60 in 2nd and
30 m in 3rd second what is average speed?​

Answer 1

the answer might be this

Answer 2

Explanation:

distance covers in 1st second = 20m

distance covered in 2nd second= 60 m

distance coverd in 3rd second = 30 m

distance coverd in all =20+60+30

=110 m

so average speed = 110m per sec.

i.e. 275/9 km per hr.