Question 752773
x = adults: y = children
 x + y = 460 ....1
3x + y = 1060....2
Subtract (1) from (2)

2x    =  600
 x    =  300

Substitute x = 300
in equation 1
x + y = 460
300 + y = 460
      y = 460 - 300
      y = 160
Therefore there were 300
adults and 160 children

Hope this helps
:-)