Pushpa and her friends are competing against each other. They are running from point A to point B to see who complete the distance the fastest. However, they are getting confused as to how to record the time properly since only one of their friends has a wristwatch.

Now, answer the following questions.

(a) What will your suggestion be to Pushpa and her friends?

(b) Is there any other instrument that will be a better choice in this case?

(c) What will be the most appropriate unit for their observations?

Sunita and her mother went to the tailor to get clothes stitched. While the tailor was taking Sunita's measurements, she noticed that the measuring tape was worn out and the initial reading from 0 inches to 2 inches was not visible. The measurements that the tailor took are given.

Now, answer the following questions.

(a) How will you correct the measurements taken?

(b) What suggestion will you give to the tailor?

A rectangle of area 16 cm² is folded into half along its length. Is it possible to find the area of the new rectangle?

How many hours are there in a century?