CBSE BOARD XII, asked by satnam77002, 1 day ago

the cost of 17 pencil is Rs 59½ find the cost of each pencil?​?

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Answers

Answered by pari2829
2
Let the cost of each pen =Rs.x, each pencil =Rs.y and of each eraser =Rs.z

As per the given information,
2x+3y+4z=46 --- (1)
3x+y+6z=62 --- (2)

Multiplying eqn 1 with 3 we get
6x+9y+12z=138 --- (3)

Multiplying eqn 2 with 2 we get
6x+2y+12z=124 --- (4)

Subtracting eqn 4 from eqn 3, we get
7y=14
=>y=2

So, cost of each pencil =Rs2
Answered by Anonymous
11

I hope this will help you, the answer is 3.5 rs.

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