Class Test 16 Sept – 2

Additional expenses made after buying an article are included in the _______ and are known as overhead expenses.

A shirt with marked price Rs 800 was sold at Rs 680. The rate of discount (in %) allowed on the shirt is ________.

Sohan bought a second hand refrigerator for ₹2,500, then spent ₹500 on its repairs and sold it for ₹ 3,300. Find his loss or gain per cent.  (NCERT Exemplar)

a^m × aⁿ =

(a^m)ⁿ =

a^m ÷ aⁿ =

The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 40. What is the range (in year) of the ages of the teachers?

A batsman scored the following number of runs in six innings: 36, 35, 50, 46, 60, 55. Calculate the mean runs scored by him in an inning.

Ashish studies for 4 hours, 5 hours and 3 hours respectively on three consecutive days. How many hours does he study daily on an average?

Mean, median and mode are the representative values of a group of observations. They are also called the __________________ of the data.