Question

A motorist has to travel 3.5km in the city where his average speed should not exceed 25kph.If he increases his ave speed to 40kph. How much time will he gain in his jouney?

Answer 1

this should be in physics section. nevertheless,
u can use the formula

v(av) = v-u/t
rearrange this to find t

Answer 2

what is the value of u?

Answer 3

u is the initial speed, which is 0km/h.

Answer 4

so 25is v(av)

Answer 5

yh

Answer 6

so the answer is 1.6??

Answer 7

i havent dont the full calculation yet
so i dont know. it should be right as long as u followed the right formula and values

Answer 8

okaay