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Q. If simple interest for 2 years for a sum is Rs. 600 and compound interest for the same sum for 2 years and same rate of interest is Rs. 645, what will be the rate of interest?

Q. 10/13 = 11/28 = 21/11 = 12/11 = K. What is K?

Q. An article costs Rs. 600. What should be the marked price of an article so that after 10% discount, the trader makes 20% profit?

Q. The degeneracy in the transportation problem indicates that

Q. P sells an article to Q at 10 % profit. Q sells it to R at 25 % profit. If R pays Rs. 250 for it, What did P pay for it ?

Q. Akhil borrowed a certain sum of money at the rate of 6%, 9% and 14% for a period of first two years, next three years and beyond the period of five years respectively. If at the end of nine years, he paid Rs. 8550 as interest, then find the sum of money he had borrowed.

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

Q. Vijay sells a cupboard at 14% below cost price. Had he got Rs.2086 more, he would have made a profit of 14%. What is the cost price of the cupboard?

Q. A boy incurs 5% loss by selling a book for Rs. 1000. At what price should the book be sold to earn 5 % profit?

Q. The ratio 5:20 expressed as percent equals to