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A typist uses a paper 30 cm by 15 cm. He leaves a margin of 2.5 cm at the top and bottom and 1.25 cm on either side. What percentage of paper area is approximately available for typing ?
Answer & Solution
Correct Answer:
Option
C
Area of the sheet = (30 × 15) cm2 = 450 cm2
Area used for typing
= [(30 - 5) × (15 - 2.5)] cm2
= 312.5 cm2
∴ Required percentage :
$$\eqalign{ & = \left( {\frac{{312.5}}{{450}} \times 100} \right)\% \cr & = 69.4\% \approx 70\% \cr} $$
Area used for typing
= [(30 - 5) × (15 - 2.5)] cm2
= 312.5 cm2
∴ Required percentage :
$$\eqalign{ & = \left( {\frac{{312.5}}{{450}} \times 100} \right)\% \cr & = 69.4\% \approx 70\% \cr} $$
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