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Mathematics

If 120\dfrac{1}{20} of a work can be done in 5 days, the amount of work done in one day will be :

  1. 1100\dfrac{1}{100}

  2. 100

  3. 4

  4. 5

Direct & Inverse Variations

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Answer

Let work done in one day be xx

Work done in 5 days = 120\dfrac{1}{20}

∴5x=120⇒x=120×5⇒x=1100\therefore 5x = \dfrac{1}{20} \\[1em] \Rightarrow x = \dfrac{1}{20 \times 5} \\[1em] \Rightarrow x = \dfrac{1}{100}

Hence, option 1 is the correct option.

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