It cost Rs. 1 to photocopy a sheet of paper . However 2% discount is allowed on all photocopies done after first 1000 sheets. How much will it cost to copy 5000sheets of paper ?
Total cost = Rs.`[ 1 xx 1000 + (100 - 2)% of 1 xx 4000]`
= Rs.(1000 + 0.98 x 4000) = Rs (1000 + 3920) = Rs. 4920
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