Five burgers, six pizzas and seven cokes cost is ₹178.Six burgers,four pizzas and two cokes cost is ₹124. Find the cost of one burger, one pizza and one coke
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5b + 6p+7c =178 ----A
6b+4p +2c =124 ----B
=2(3b+2p+c =62)
B/2= 3b+2p+c =62 ----C
A+C =
5b+6p+7c = 178
3b+2p+c = 62
_____________
8b+8p+8c = 240 ------D
______________
D/8=
b+p+c = 30
answer: 30
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