Question

The speed of Express train is 140 km/hour . (i) It is increased by 25%. Find the new speed of the Train. (ii) If the speed is decreased by 5%, what would be the new speed?

Answer 1

Step-by-step explanation:

First speed = 140 km/hour

25%of 140km/h

=25/100×140=35km/h

(1.)Now after increasing 25%the speed=(140+35)=175km/hour

(2.)if the speed is decreased by5% then new speed=5% of 175

=5/100×175=35/4=8.375km/hour

so,(175-8.375)=171.125km/h