६. यदि 0.42 x 100k = 42 हो, तो k का...
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६. यदि 0.42 x 100k = 42 हो, तो k का मान कितना है? (2) 2 (1) 4 (3) 1 (4) 3

11th - 12th Class
Maths
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5. (3) ( 0.42 times 100^{k}=42 ) ( Rightarrow frac{42}{100} times 100^{k}=42 ) ( Rightarrow 100^{k}=frac{42 times 100}{42}=100^{1} ) ( Rightarrow mathrm{k}=1 )
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