the total amount of. 3 books and 2 pens is 185 . if book cost 7.5 more than a pen Find cost of each item
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Answer:
Cost of 1 book = ₹40
Cost of 1 pen = ₹32.5
Step-by-step explanation:
No. of books = 3
Cost of book more than a pen = ₹7.5
Total cost of all books more than pen = ₹7.5×3
= $22.5
If you subtract ₹22.5 from ₹185 then the cost of books and pens will be equal
∴ ₹185 - ₹22.5 = ₹162.5
∴ ₹162.5 ÷ 5 (3 books + 2 pens) = ₹32.5
∴ Cost of 1 pen = ₹32.5
∴ Cost of 1 book = ₹32.5 + ₹7.5
= ₹40
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Check
Cost of 1 book = ₹40
Cost of 1 pen = ₹32.5
∴ ₹40×3+₹32.5×2
Ans ₹185
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