Nitya takes 2 hrs. to read a book of 100 pages where the lines are spaced six per inch and the left and right margins together from 10% of the width of the page. How long will she take to read another book of the same dimensions consisting of 300 pages with the left and right margins 25% wider than before and the lines are spaced nine per inch? The top and bottom space on each page in the first book is the same as those in the second book.

A trader sells widgets at a certain list price. If any customer buys a second widget during the week he gives 5% discount on the list price for the second widget and every additional widget that the customer buys during the week is supplied at a price 5% less than that of the second widget Further if a customer buys five or more widgets during a week, the trader gives an additional 1% of the list price as quantity discount. If a certain customer buys 5 widgets during a week, what is the average discount the customer gets per widget?

Three friends Mike, James and John went shopping. Mike purchased half as many items as were purchased by James and John together while James purchased as many items as were purchased by Mike and John together. If in all they purchased 48 items, how many items did Mike purchase?

A customer buys an Internet connection from VSNL. The connection cost Rs.2,500 for a total of 200 hours of usage or a validity period of one year, whichever expires first. The customer can connect to the Internet only by dialing a local number and will be billed at Rs.2 per local call of 3 minutes while he accesses the internet.

What is the sum of money that the customer will have to pay the local telephone company if he wants to minimize his fixed cost per hour of Internet usage?

A customer buys an Internet connection from VSNL. The connection cost Rs.2,500 for a total of 200 hours of usage or a validity period of one year, whichever expires first. The customer can connect to the Internet only by dialing a local number and will be billed at Rs.2 per local call of 3 minutes while he accesses the internet.

If Caltiger provides an Internet connection and charges a fixed cost of Rs.1,000 for every 200 hours of usage apart from Rs.6 per hours of usage, then what is the minimum usage level for the VSNL connection to be economically viable for the customer?