App Logo

No.1 PSC Learning App

1M+ Downloads

The average weight of 48 students of a class is 36 kg. If the weights of teacher and principal is included. The average becomes 36.76 kg. Find the sum of the weights of teacher and principal?

A114 kg

B112 kg

C108 kg

D110 kg

Answer:

D. 110 kg

Read Explanation:

Sum of weights of teacher and principal ⇒ New avg. × No. of students – Existing avg. × No. of students ⇒ 36.76 × 50 – 36 × 48 = 1838 – 1728 ⇒ 110 kg


Related Questions:

9-ൻ്റെ 56% + 4-ൻ്റെ 44% = 34-ൻ്റെ x%, അപ്പോൾ x-ൻ്റെ മൂല്യം

25 1/4% x 25 1/4% =

Population of a town increases by 12% every year. If the population of town will be 188160 after 2 years, then what is its present population?

The following pie chart shows the distribution of expenses (in degrees) of a family during 2016.

Total income of the family in 2016 = Rs. 1080000

Their expenditure on rent is what percentage of their expenditure on Education?

If 25% of a number is added to 60, then the result is the same number. 80% of the same number is: