RBI Assistant Mains 2017 Sitting 3 Paper

(4) A + B + C = 45 × 3 = 135 kg
........(i)
A + B = 2 × 40 = 80 kg
.... (ii)
B + C = 2 × 43 = 86 kg
. .... (iii)
By equatino (ii) + (iii) (i) ,
B's weight = = (86 + 80 135) kg
= 31 kg.