Question

In Arun's opinion, his weight is greater than $65$ kg but less than $72$ kg. His brother does not agree with Arun and he thinks that Arun's weight is greater than $60$ kg but less than $70$ kg. His mother's view is that his weight cannot be greater than $68$ kg. If all of them are correct in their estimation, what is the average of different probable weights of Arun?

• A. $66.5$ kg
• B. $67$ kg
• C. $68$ kg
• D. $72$ kg

Answer 1

The correct option is B $67$ kg

Answer:- Taking the prediction of each member

i) Arun's opinion : $65-72$

ii) Arun's weight Brother's opinion $=60-70$

iii) Mother' opinion $=<68$

Thus considering the above opinion, we get:

Arun's weight $=66,67,68$

$\Rightarrow \text{Average of Arun's weight}=\frac{66+67+68}{3}=67$

B)$67kg$