Answer:
64
Area of the sheet = (20 × 30) cm2 = 600 cm2
Area used for typing = [(20 -- 4) × (30 -- 6)] cm2 = 384 cm2
∴Required percentage = (384600×100)%=64%
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Answers & Comments
Answer:
64
Area of the sheet = (20 × 30) cm2 = 600 cm2
Area used for typing = [(20 -- 4) × (30 -- 6)] cm2 = 384 cm2
∴Required percentage = (384600×100)%=64%