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What Number: When Decreased by 40% Becomes 480? - Mathematics

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Sum

What number: When decreased by 40% becomes 480?

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Solution

Let the number be = 100

Decrease = 40% = 40

∴ Decreased number = 100 - 40 = 60

If decreased number is 60, then original number = 100

and if decreased number is 480, then original number `= 100/480 xx 60 = 800`

Concept: Converting Decimals to Percentage
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APPEARS IN

Selina Concise Mathematics Class 7 ICSE
Chapter 8 Percent and Percentage
Exercise 8 (C) | Q 4.4

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