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Standard IX

Mathematics

Linear Equation in 2 Variables

A greeting ca...

Question

A greeting card costs Rs. $3$ and a ream of photocopy paper costs Rs. $8$ . Amir paid Rs. $32$ for $x$ cards and $y$ reams of paper. Write a linear equation based on the information above.

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Solution

Overall, Amir purchased cards and reams of paper.
Now, 1 card cost Rs. 3 and he bought x cards so in total, he purchased cards of worth 3x
Similarly, for reams of paper, he paid 8y

Total money he paid=Rs.32
Hence our Equation becomes: $3 x + 8 y = 32$

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A greeting card costs Rs.3 and a ream of photocopy paper costs Rs.8. Amir paid Rs.32 for x cards and y reams of paper. Write a linear equation based on the information above.

Overall, Amir purchased cards and reams of paper.Now, 1 card cost Rs. 3 and he bought x cards so in total, he purchased cards of worth 3xSimilarly, for reams of paper, he paid 8yTotal money he paid=Rs.32Hence our Equation becomes: 3x+8y=32

A greeting card costs Rs. $3$ and a ream of photocopy paper costs Rs. $8$ . Amir paid Rs. $32$ for $x$ cards and $y$ reams of paper. Write a linear equation based on the information above.

Overall, Amir purchased cards and reams of paper.
Now, 1 card cost Rs. 3 and he bought x cards so in total, he purchased cards of worth 3x
Similarly, for reams of paper, he paid 8y

Total money he paid=Rs.32
Hence our Equation becomes: $3 x + 8 y = 32$