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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Solve: "X"/2 + "X"/5 = 14 - Mathematics

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प्रश्न

Solve: `"x"/2 + "x"/5 = 14`

योग
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उत्तर

`"x"/2 + "x"/5 = 14`

⇒ `("5x + 2x")/10 = 14`

⇒  5x + 2x = 14 × 10

⇒ 5x + 2x = 140

⇒ 7x = 140

⇒ x = `140/7 = 20`

∴ x = 20 

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

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सेलिना Concise Mathematics [English] Class 7 ICSE
अध्याय 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (C) | Q 4
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