Question

Find: 

1.  15% of 250 
2.  1% of 1 hour 
3.  20% of Rs 2500 
4.  75% of 1 kg

Answer 1

(a) \(15\% \;of \;250\)

= \(\frac{15}{100}\times250\)

= \(\frac{75}{2}\)

= \(37.5\)

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(b) \(1\; hour=60\; minutes\)

 \(1\%\;of \;60\; minutes\)

= \(\frac{1}{100}\times60\)

= \(\frac{3}{5}\;minutes\)

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(c) \(20\%\;of\; Rs\;2500\)

= \(\frac{20}{100}\times2500\)

= \(Rs\;500\)

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(d) \(75\%\;of \;1\;kg\)

= \(\frac{75}{100}\times1\)

= \(0.75\;kg\)

= \((0.75\times1000)g\)

= \(750\;g\)