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

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 beyondcertain date as follows: Rs 200 for the first day, Rs 250 for the second day, Rs 300 for ththird day, etc., the penalty for each succeeding day being Rs 50 more than for thpreceding day. How much money the contractor has to pay as penalty, if he has delaythe work by 30 days?
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