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Q. 3 Express the following numbers in standard form:
(i) 5,00,00,000
(ii) 70,00,000
(iii) 3,18,65,00,000
(iv) 3,90,878
(v) 39087.8
(vi) 3908.78
Answer :

(i)\( 5,00,00,000 = 5 × 10^7 \)
(ii)\( 70,00,000 = 7 × 10^6 \)
(iii) \( 3,18,65,00,000 = 3.1865 × 10^9 \)
(iv) \(3,90,878 = 3.90878 × 10^5 \)
(v)\( 39087.8 = 3.90878 × 10^4 \)
(vi)\( 3908.7 8 = 3.90878 × 10^3 \)