While doing the science experiment in the physics lab, Nadine had to take 7 measurements of the temperature and write the average of those as an answer. If the measurements of the temperature is -1, 2, 1, 1, -2, -1, 1, what is the final answer of her experiment ?

There are 44 employees in an insurance company, who work in three shifts. The first group of 11 employees work from 10:00 AM to 01:00 PM. The second group of 13 employees work from 12:00 PM to 02:00 PM. The third group of 20 employees work from 01:00 PM to 02:00 PM. If there are only 10 computers, during what time are the computers likely to be used most?

First picture below shows a wire in circular shape with radius of 40 cm. Rehu cut out an arc from wire such that arc makes an angle of 90° at the center. If this arc is again bent in circular shape as shown in the second picture, find the radius of new circle.