Question

The weights of three angles measured closing a traverse are 2,3 and 5 respectively. The weight of the sum of angles will be _________

• A. 0.97

Answer 1

The correct option is A 0.97
The weight of algebraic sum of two or more quantities is equal to the reciprocal of the sum of reciprocals of their individual weights

$\therefore$ weight of sum of angles
$=\frac{1}{\frac{1}{2}+\frac{1}{3}+\frac{1}{5}}=0.97$