A father gave equal amount of money to his three daughter Simron, Cinderella and Sreya to purchase some items for his birthday party. Simron brought puffs which cost Rs. 18 each, Cinderella bought cake which cost Rs.24 each and Sreya bought cool drinks which cost Rs. 30 each. If they spent their money completely on these items, then find the minimum number of cakes that Cinderella bought.

Bimanbabu for the higher education of his son and daughter, deposited some money in a bank at a rate of 12% simple interest per annum. After 20 years, the total amount that Bimanbabu got from the bank, distributed the money among his son and daughter in the ratio 5 : 3 and then bought two govt. debenture. If the value of the deventure of son be Rs25500 , then find the amount of money which Bimanbabu invested in the bank at first.

A man sold 15 units of wood and the cost of each unit of wood was Rs 32. Then, he bought 2 kg of rice with his earnings at the rate of Rs 28 per kg. How much money was the man left with after buying the rice?

Asha has an orphange. She went to market daily to purchase food items to meet the daily requirement of children. One fine day, she bought 4 kg onion, 3 kg wheat and 2 kg rice. It cost her Rs 60. Next day, she bought 2 kg onion, 4 kg wheat and 6 kg rice. It cost her Rs 90. Another day, she bought 6 kg onion, 2 kg wheat and 3 kg rice which cost Rs 70 If AX = B is the matrix form of the system of linear equations formed from the given situations, then the determinant of matrix A is:

Akhila went to a fair in her village. She wanted to enjoy rides on the Giant wheel and play Hoopla (a game in which you throw a ring on the items kept in a stall, and if the ring covers any object completely, you get it) The number of times she played Hoopla is half the number of rides she had on the Giant wheel. The cost of each ride is Rs 3 and the cost of each game of Hoopla is Rs 4. She spent Rs 20 on both the game. Find the number of rides that Akhila had on the Giant wheel.

The principal sanctioned a certain amount of money to the librarian to purchase some mathematics books costing Rs90 each . She could buy 80 books . Then she approached to a publisher who offered her a 20% discount . Find the number of copies of mathematics books which she could buy from the publisher for the sanctioned money.

A clock seller sold a clock by purchasing it at Rs 336. The amount of his profit percenty is as much as the amount with which he bought the clock. Find the cost price of the clock.

Aditya went to a stationery shop to buy some Parker pens. Gel pens cost Rs 300 each while fountain pens cost Rs 400 each. Aditya spent a total of Rs 3600 on pens. If he had bought as many fountain pens as the number of gel pens he actually bought and vice-versa, he would have saved an amount equal to half the cost of one pen of one of the two types. Find the total number of pens he bought. (a) 8 (b) 9 (c) 10 (d) 12

Kishore invested a certain sum of money in two types of share A and B of a company. The market value of A is Rs.30 more than that of B. He bought 400 shares of A and 300 shares of B. If he spent Rs.18,000 more on A than B, then find the market value of each share of B. (in Rs.)