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Shashi used addition to solve a word problem about the weekly cost of commuting by toll tax for ₹ 15 each day. Ravi solved the same problem by multiplying. They both got the correct answer. - Mathematics

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प्रश्न

Shashi used addition to solve a word problem about the weekly cost of commuting by toll tax for ₹ 15 each day. Ravi solved the same problem by multiplying. They both got the correct answer. How is this possible?

योग

उत्तर

By addition method,

Total weekly cost = (15 + 15 + 15 + 15 + 15 + 15 + 15) = ₹ 105

By multiplication method,

Total weekly cost = Cost of one day × Seven days = 15 × 7 = ₹ 105.

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अध्याय 10: Algebraic Expressions - Exercise [पृष्ठ ३२८]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
अध्याय 10 Algebraic Expressions
Exercise | Q 95. (ii) | पृष्ठ ३२८

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