UGC NET Paper 1 GA 20 Nov 2021 Shift 1 Solved Paper

Formula Used:
Average $=($ Sum of the terms $)∕($ Number of the terms $)$
Calculation:
The prime numbers between 70 to 90 are $71,73,79,83$ and 89
Average $=($ Sum of the terms $)∕$ Number of the terms $)$
Average $=\left(71+73+79+83+89\right)∕5$
$\Rightarrow 395∕5=79$
$\therefore$ The average of all prime numbers between 70 to 90 is $79.$