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Write the following in exponential form, (values are rounded off)

i) Total surface area of the Earth is 510,000,000 square kilometers.

ii) Population of Rajasthan is approximately 7,00,00,000.

iii) The approximate age of the Earth is 4550 million years.

iv) 1000 km in meters.

1 Answer

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Best answer

i) 51 × 107 = 3× 17 × 107

ii) 7 × 107

iii) 4550 millions = 4550 × 10,00,000 (v 1 million =10 lakhs)

= 455 × 107 = 91 × 5 × 107 = 5 × 7 × 13 × 107

iv) 1 km = 1000 m

∴ 1000 km = 1000 × 1000 m = 106

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