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The difference between the simple and compound interest on a certain sum of money at 20% per annum for 3 years is Rs.1408. If the same sum is invested in simple interest at 15% per annum for 5 years, find the simple interest.
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There are four speakers in a market with different cost prices,namely P, Q, R and S. The cost price of speaker S is Rs.800, which is Rs.100 less than that of speaker Q. The cost price of speaker P is 25% less than that of speaker R and the ratio of the cost price of speakers P to Q is 5:3.The markup percentage of speaker P is 40% and itis sold at a 20% discount. The markup percentage of speaker S is 60% and it is sold at a 20% profit. The markup percentage of speaker Q is twice the discount percentage offered on speaker S and speaker Q is sold at a 28% discount.
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If the profit percentage of speakers P and R are Y% and (Y + 0.5)% respectively, find the profit amount earned on speaker R.
Find the difference between the marked price of speaker Q and the selling price of speaker S.
If the cost price of speaker T is Rs.250 less than that of speaker R and the marked price of speaker T is 250% more than the cost price of speaker Q. Find the difference between the marked price and cost price of speaker T.
If the cost price of speaker Sincreases 12.5%, then find the ratio of the marked price of speaker P to the cost price of speaker S.
What value should come in the place of (?) in the following number series?
129, ?, 157, 202, 311, 545
863, 842, 779, 674, ?, 338
?, 132, 198, 396, 990, 2970
400, 359, 327, 302, 282, ?
1090, 1053, 1012, ?, 922, 869
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