Answer to Question #38372 in Quantitative Methods for diana

Question

A Bombay merchant has to remit some money to England. A moneychanger takes 8 paise more than the bank rate per rupee. The merchant reckons that he needs Rs. 2764, if he converts his money through the changer, and he needs Rs. 2740 through the bank for sending the same amount of English money. What is the bank rate of exchange in rupees?

2.A classroom has 26 rows (From A to Z), each row is divided in three columns and each column has five seats. To enter in the class, four doors (D1, D2, D3 and D4) are available and reaching up to the door two stairs (LH & RH) are available. A student wants to take the seat in the row C, F or P and then in how many ways he can get the seat.

3.If, (P- 1)/9 = r, where r is triangular no and can be maximum of four digit no. What is the probability that P is a perfect number?