Answer:
lets take the number of adults as a and children as c
3a+2c=1100
2a+3c=900
using substitution method
2c=1100-3a
c=1100-3a
2
2a+3c=900
but c =1100-3a
2
2a+3[1100/2-3a/2]=900
2a+3300/2-9a/2=900
2a-9/2a=900-3300
-5/2a=-2400
a=-2400x-2/5
adults=Rs 960
c=1100/2-3a/2
but a=960
children=-2330
1100/2-3/2[960]
1100/2-1440
children=2880
Step-by-step explanation: