Amulya buys a 250-page notebook for ₹20. What will he pay for another 225-page notebook?

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Solution

The cost of a 250-page notebook = ₹20
$∴$ The cost of a 1-page notebook = $\frac{₹ 20}{250} = ₹ 0.08$
Now the cost of a 225-page notebook = $225 \times ₹ 0.08$ = $₹ 18$
So, Amulya will pay $₹ 18$ for a 225-page notebook.

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Amulya buys a 250-page notebook for ₹20. What will he pay for another 225-page notebook?

The cost of a 250-page notebook = ₹20∴The cost of a 1-page notebook = ₹20250=₹0.08 Now the cost of a 225-page notebook = 225×₹0.08 = ₹18 So, Amulya will pay ₹18 for a 225-page notebook.

The cost of a 250-page notebook = ₹20
$∴$ The cost of a 1-page notebook = $\frac{₹ 20}{250} = ₹ 0.08$
Now the cost of a 225-page notebook = $225 \times ₹ 0.08$ = $₹ 18$
So, Amulya will pay $₹ 18$ for a 225-page notebook.