Challenger App

No.1 PSC Learning App

1M+ Downloads
The average weight of A, B and C is 65 kg. If the average weight of A and B is 63.5 kg, and the average weight of A and C is 67.5 kg, then the weight of A (in kg) is:

A67

B65

C68

D60

Answer:

A. 67

Read Explanation:

A + B + C = 65 × 3 = 195 kg A + B = 63.5 × 2 = 127 kg A + B + C – (A + B) = 195 – 127 C = 68 kg A + C = 67.5 × 2 = 135 A + 68 = 135 A = 135 – 68 = 67 kg


Related Questions:

The average of all odd numbers less than 100 is
Calculate the average of the cubes of first 5 natural numbers
A set of 51 numbers in such that if we remove the fist number, the average of the remaining numbers will be reduced by 1 from the average of all the numbers, if we remove the first and second, average be reduced by 2 from the original average of 51 numbers and so on. If average of all the 51 numbers is 1000, then which of the following is true
Out of three numbers, the first is twice the second and is half of the third. If the average of the three numbers is 63, then difference of first and third numbers is:
In a class, the average age of 40 students is 12 years when teacher’s age is included to it, the average increases by 1. The age of teacher is :