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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


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