resham bought 1200 copies at Rs 60 per copy. He gave 300 copies out of these copies in the form of scholorship. If he sold tje remaining copies at 5% loss, what was the selling price of each copy? Find it.

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

What is the sum of these mixed numbers 4 2/3+ 3 1/9

A. 10.8 cm^2 b. 5.4 cm^2 c. 7.4 cm^2 d. 21.6 cm^2