15. A contract on construction job specifies a penalty for delay of completion beyond acertain date as follows: 200 for the first day, 250 for the second day, 300 for the thirdday, etc., the penalty for each succeeding day being 50 more than for the preceding day.How much money the contractor has to pay as penalty, if he has delayed the work by 30days?

15. A contract on construction job specifies a penalty for delay of co

1.	15. A contract on construction job specifies a penalty for delay of completion beyond acertain date as follows: 200 for the first day, 250 for the second day, 300 for the thirdday, etc., the penalty for each succeeding day being 50 more than for the preceding day.How much money the contractor has to pay as penalty, if he has delayed the work by 30days?
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