Question

average marks of 4 men is increased
by 3 when one of them whose marks are
15 replaced by another man. What is
the marks of new men?
(1) 123
(2) 124
(3) 132
(4) 133​

Answer 1

Answer:

average marks of 4 men is increased

by 3 when one of them whose marks are

15 replaced by another man. What is

the marks of new men

1.

Answer 2

Step-by-step explanation:

Here, the increment in average weight of 4 men = 3,

Thus, the total increment in the total sum of weight of men = 3 × 4 = 12 kg,

Since, the weight of replaced man = 120 kg,

Thus, the weight of new man = the weight of replaced man + total increment in the total sum of weights

= 120 + 12

= 132 kg.