Question

Please show the working and a little explanation will be really great

Answer 1

Hello, here is your answer

TOTAL DISTANCE TO BE TRAVELLED = 60KM/S

AVG SPEED REQUIRED = 40 KM/H

THEREFORE TIME TAKEN WOULD BE = 3/2

HOURS (60/40)

TIME TAKEN FOR FIRST 30 KM/H = 30/30 =1 HOUR

SO TIME LEFT = 1/2 HOURS

DISTANCE TO BE COVERED = 30 KM/H

SO SPEED TO BE ATTAINED = 30/1/2=30*2/1= 60 KM/H