SSC CGL 16 Aug 2015 Shift 2 Paper

Suppose the number of deer = d
And, number of peacocks = p
According to question
d + p = 80 --- (i)
And, 4d + 2p = 200
or, 2d + p = 100--- (ii)
From equations (i) and (ii)
d = 20
Therefore, number of peacocks
= 80 – 20 = 60