हिंदी

The cost of a tape-recorder is Rs 10,800 inclusive of sales tax charged at 8%. The price of the tape-recorder before sales tax was charged is ______. - Mathematics

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प्रश्न

The cost of a tape-recorder is Rs 10,800 inclusive of sales tax charged at 8%. The price of the tape-recorder before sales tax was charged is ______.

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उत्तर

The cost of a tape-recorder is Rs 10,800 inclusive of sales tax charged at 8%. The price of the tape-recorder before sales tax was charged is Rs 10,000.

Explanation:

The cost of tape recorder, inclusive of 8% sales tax = Rs. 10800

Let the price of the tape recorder before sales tax be Rs. x.

So, `x + x xx 8/100 = 10800`

⇒ `(100x + 8x)/100 = 10800`

⇒ 108x = 10800 × 100

⇒ `x = (10800 xx 100)/108`

⇒ x = 100 × 100

⇒ x = Rs. 10000

Hence, the price of the tape recorder before sales tax charged is Rs. 10000.

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अध्याय 9: Comparing Quantities - Exercise [पृष्ठ २९१]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 8
अध्याय 9 Comparing Quantities
Exercise | Q 42. | पृष्ठ २९१
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