Question

The area of a rectangular field is 48m square and one of its sides is 6 m . How long will a lady take to cross the field diagonally at the rate of 20m/minute

Answer 1

Answer:

Firstly ... given..

l×b = 48m^2

let b = 6m

therefor l×6=48 and l= 8m

H^2 = B^2 + P^2

H2= 36+ 64

H = 10m

Speed = Distance ÷Time

Therefor... Time = D ÷ S

Time = 10 ÷ 20

time = 1/2 min

:Time = 30 sec