Q. 7 H3.7( 3 Votes )

Express the follo

Answer :

.404040....


Let 𝑥 = 0.404040 …


𝑥 = 0. 40 ………..….…. (1)


Multiplying both sides by 100, we get


100 𝑥 = 40.40 ……….…. (2)


Subtracting equation (1) from equation (2), we get


100 𝑥 𝑥 = 40.40 − 0.40


99𝑥 = 40



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