if 1 kg of sweets and 3 kg of Apples cost rupees 33 and 2 kg of sweets and 1 kg of Apples cost rupees 31 what is the cost per kg of each
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Answer:
apple = 7 per kg
sweet= 12 per kg
Step-by-step explanation:
let sweet be x and apple be y
1x + 3y = 33
multiply with 2
2x + 6y = 66 equ (1)
2x + 1y = 31 equ (2)
(1) - (2)
5y = 35
y = 35/5 = 7
substitute in equ (2)
2x + 7 = 31
2x = 31 - 7
2x = 24
x = 12
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