Question

solve this question asap​

Answer 1

Please send full question is not full option.

Answer 2

Answer:

Correct Option is :

(b). 41 kg

Explanation :

Mean weight of 25 students = 28kg

28 = (x1 + x2 +... + x25 ) / 25

(x1 + x2 +... + x25 ) = 28 × 25

(x1 + x2 +... + x25 ) = 700

If the weight of teacher is also included, then weight becomes 28.5 kg.

Let weight of teacher be w(t).

28.5 = (x1 + x2 +... + x25 + w(t) ) / 26

28.5 × 26 = 700 + w(t)

741 = 700 + w(t)

w(t) = 741 - 700

w(t) = 41 kg.