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Michael Finished `7by2` a Picture in `7by12` Hour. Vaibhav Finished Colouring the Same Picture in `3by4` Hour. Who Worked Longer? by What Fraction Was It Longer? - Mathematics

Michael finished `7/2` a picture in `7/12` hour. Vaibhav finished colouring the same picture in `3/4` hour. Who worked longer? By what fraction was it longer?

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Solution

Time taken by Michael = `7/12` hr

Time taken by Vaibhav = `3/4` hr

Converting these fractions into like fractions, we obtain

`3/4 = (3 xx 3)/(4 xx 3) = 9/12`

And `7/12`

Since 9 > 7,

Vaibhav worked longer.

Difference = `9/12 - 7/12 = 2/12 = 1/6` hour

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APPEARS IN

NCERT Class 7 Maths
Chapter 2 Fractions and Decimals
Exercise 2.1 | Q 8 | Page 32
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