Ram saves Rs 1 on the first day, Rs 2 on the second day, Rs 3 on the third day and continues to save like this for 30 days. What is the total amount of his savings after 30 days.

A contract on construction job specifies a penalty for delay of completion beyond a certain date as follows : $200 for the first day, $250 for the second day, $ 300 for the third day, 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 30 days ?

A man saves ₹3200 during the first year, ₹ 3600 in the next year, ₹ 4000 in the third year. If he continues his saving in this sequence, in how many years will he have Rs. 200000 ?

If you save 1 paise today, 2 paise next day and 3 paise succeeding day and so on, what will be your saving in 365 days ?

A certain radioactive substance has a half period of 30 days. What is disintegration constant?

The helf life period o a radioactive substace is 30 days.What is the time taken for 3//4th of its original mass to disintegrate?

If the monthly savings of the family is Rs.3,000.What is the monthly expenditure on clothes ?

The relative humidity (in %) of a certain city for a month of 30 days was as follows : : What is the range of this data ?