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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ९

The length, breadth and height of a chocolate box are in the ratio 5 : 4 : 3. If its volume is 7500 cm3, then find its dimensions

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प्रश्न

The length, breadth and height of a chocolate box are in the ratio 5 : 4 : 3. If its volume is 7500 cm3, then find its dimensions

योग
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उत्तर

Let the length of a chocolate be 5x, the breadth of a chocolate be 4x, and the height of a chocolate be 3x.

Volume of a chocolate = 7500 cm3

l × b × h = 7500

5x × 4x × 3x = 7500

5 × 4 × 3 × x3 = 7500

x= `7500/(5 xx 4 xx 3)`

x3 = 125

⇒ x3 = 53

x = 5

∴ Length of a chocolate = 5 × 5 = 25 cm

Breath of a chocolate = 4 × 5 = 20 cm

Height of a chocolate = 3 × 5 = 15 cm

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अध्याय 7: Mensuration - Exercise 7.3 [पृष्ठ २६३]

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सामाचीर कलवी Mathematics [English] Class 9 TN Board
अध्याय 7 Mensuration
Exercise 7.3 | Q 3 | पृष्ठ २६३

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