हिंदी

Rohan's mother gave him ₹ 3xy2 and his father gave him ₹ 5(xy2 + 2). Out of this total money he spent ₹ (10 – 3xy2) on his birthday party. How much money is left with him? - Mathematics

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प्रश्न

Rohan's mother gave him ₹ 3xy2 and his father gave him  ₹ 5(xy2 + 2). Out of this total money he spent ₹ (10 – 3xy2) on his birthday party. How much money is left with him?

योग

उत्तर

Given, amount given to Rohan by his mother = ₹ 3xy2 and amount given to Rohan by his father = ₹ 5(xy2 + 2)

∴ Total amount Rohan have = [(3xy2) + (5xy2 + 10)]

= ₹ [3xy2 + 5xy2 + 10]

= ₹ (8xy2 + 10)

Total amount spent by Rohan = ₹ (10 – 3xy2)

∴ After spending, Rohan has left money.

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अध्याय 10: Algebraic Expressions - Exercise [पृष्ठ ३२५]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
अध्याय 10 Algebraic Expressions
Exercise | Q 84. | पृष्ठ ३२५

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