. If one orange toffee and one mango toffee costs ₹3, whereas two orange toffees and five mango
toffees cost ₹12. Find the cost of 3 mango
toffees.
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Answer:
Let the cost of Orange toffees be ' ₹ x ' and the cost of Mango toffees be ' ₹ y ' .
Given:
x + y = ₹ 3 ----> eq ①
2x + 5y = ₹ 12 ------> eq ②
Multiply eq ① by 2
= 2x + 2y = ₹ 6
Subtract eq ① from eq ②
2x + 5y = ₹ 12
2x + 2y = ₹ 6
____________
3y = ₹ 6
____________
Substitute y in eq ①
=> x + 2 = 3
=> x = 3-2
( Using Simultaneous equations ........... )
Then we'll get .......
: )
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