Question

There are 40 papers of students of a class to be checked by two teachers. Mr. Ashok can
check five papers in an hour and Mrs. Meena can check four papers in an hour. If Mr. Ashok
spends three hours in checking the papers and Mrs. Meena works for two hours, what
percentage of the papers will be checked in all?​

Answer 1

Answer:

A large Concave Mirrors are used in the field of solar energy to focus sun rays for heating solar furnaces. A Convex Mirror is that is spherical mirror in which the reflection of light takes place at the convex surface. Convex Mirror are used as rear view mirror in vehicles to see the traffic at the rear sid

Answer 2

here's your answer above the picture