MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Average Speed

ntA boy runs ...

Question

ntA boy runs for 10 mins at a uniform speed of 9 km/h. At what speed should he run for the next 20 mins so that the average speed comes to 12 km/h?n

Open in App

Solution

Suggest Corrections

thumbs-up

1

Similar questions

Q. A boy runs for

10 min

at a uniform speed of

9 km/h

. At what speed should be run for the next

20 min,

so that the average speed comes to

12 km/h

?

A boy runs for 10min at a uniform speed of 9kmph . At what speed should he run for the next 20min so that the average speed comes 12kmph.

Q. Rahul runs for 20 mins at the speed of 20 km/hr after which he gets tired. He still manages to run for 10 mins but at a lesser speed of 10 km/hr. How much distance did Rahul cover? [2 MARKS]

Q. A man runs for 10 minutes at a uniform speed of 18 km/h. At what speed should he run for next 20 minutes so that the average speed becomes 24 km/h?

एक व्यक्ति 10 मिनट के लिए 18 km/h की एकसमान चाल से दौड़ता है। उसे अगले 20 मिनट के लिए किस चाल से दौड़ना चाहिए ताकि उसकी औसत चाल 24 km/h हो जाए?

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Average speed

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard VII Mathematics

Join BYJU'S Learning Program

CrossIcon