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Q. Suresh for 2 years invested Rs. 500 in SBI. He also invested Rs. 300 in ICICI for 4 years. At the end he received Rs. 220 from both banks as simple interest. What must have been rate of interest?

Q. In a library, the ratio of number of story books to that of non-story books was 4:3 and total number of story books was 1248. When some more story books were bought, the ratio became 5:3. Find the number of story books bought.

Q. certain sum earns simple interest of Rs. 800 in 2 years at a certain rate of interest. If the same sum earns compound interest of Rs. 845 in the same period of 2 years, What must be the rate of interest?

Q. Operation research approach is

Q. The smallest quantity is chosen at the corners of the closed path with negative sign to be assigned at unused cell because

Q. A man got Rs. 130 less, as simple interest, when he invested Rs. 2000 for 4 years as compared to investing Rs. 2250 for same duration. What is the rate of interest?

Q. Price of each article of type P, Q, and R is Rs. 300, Rs. 180 and Rs. 120 respectively. Suresh buys articles of each type in the ratio 3:2:3 in Rs. 6480. How many articles of type Q did he purchase?

Q. If a person sells a ‘sari’ for Rs. 5200, making a profit of 30%, then the cost price of the sari is

Q. OR has a characteristics that it is done by a team of

Q. Find A:B:C:D when A:B = 2:3 ; B:C = 7:9 ; C:D = 5:7