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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Find Three Consecutive Natural Numbers Such that the Sum of the First and the Second is 15 More than the Third. - Mathematics

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प्रश्न

Find three consecutive natural numbers such that the sum of the first and the second is 15 more than the third.

योग

उत्तर

Let the first conscutive number = x,

Second consecutive number = x + 1

and Third consecutive number = x + 2

According to the condition,

x + x + 1 = 15 + x + 2

⇒ 2x + 1 = 17 +x

⇒ 2x -x = 17 – 1

⇒ x= 16

∴ The first consecutive number = 16

Second consecutive number =16+1 = 17

Third consecutive number =16 + 2=18

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Simple Linear Equations in One Variable
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 12: Simple Linear Equations (Including Word Problems) - Exercise 12 (D)

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सेलिना Concise Mathematics [English] Class 7 ICSE
अध्याय 12 Simple Linear Equations (Including Word Problems)
Exercise 12 (D) | Q 15

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