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Solve: X – 30% of X = 35 - Mathematics

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Question

Solve: x – 30% of x = 35

Sum
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Solution

x – 30% of x = 35


⇒ x - `30/100 xx "x" = 35`


⇒ `(100"x" - 30"x")/100 = 35`

⇒ 100x - 30y = 35 × 100

⇒ 100x - 30x = 3500

⇒ 70x = 3500

⇒ x = `3500/70 = 50`

∴ x = 50

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Chapter 12: Simple Linear Equations (Including Word Problems) - Exercise 12 (C)

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Selina Concise Mathematics [English] Class 7 ICSE
Chapter 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (C) | Q 16
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