Question

A car travels with speed 20kmph for 1.5 hrs & then with speed 40kmph for 30 mins. Its average speed will be​

Answer 1

$\underline{\purple{\ddot{\MasterRohith}}}$

Given:-

• A car travels with speed 20kmph for 1.5 hrs & then with speed 40 kmph for 30minutes .

To find :-

• Average speed

Explanation :-

• TOTAL TIME THE JOURNEY GIVEN AS
• t=d1/v1+d2/v2

• t=30/40+30/20
• t=2.25 hours.

• Average speed v=d1+d2/t
• Average speed =30+30/2.25
• Average speed =26.67km/h

Therefore ,

• Average speed will be 26.67 km/h

Hope it helps u mate.

Thank you .