Question
Simple interest and compound interest (compounded
annually) earned on a sum at the end of 2 years at a certain rate of interest p.a. are Rs. 1300 and Rs. 1430 respectively. Find the rate of interest.Solution
Simple interest for 1 year = 1300/2 = Rs. 650 Difference between compound Interest and Simple Interest for 2 years = 1430 ; 1300 = Rs. 130 Desired rate = 130/650 times; 100 = 20%
3Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25Â Â Â Â Â Â Â Â Â Â Â 173Â Â Â Â Â Â Â Â Â 1041Â Â Â Â Â Â Â 5201Â Â Â Â Â Â Â 20809
10       a �...
24 25 46 ? 572 2885
...2,0, 9, 20, ‘?’, 714
7Â Â Â Â Â Â 15Â Â Â Â Â Â Â 31Â Â Â Â Â Â 63Â Â Â Â Â Â 127Â Â Â Â Â Â ?
...148, ‘?’ , 15 4 , 17 8 , 23 8 , 35 8 , 56 8
6 6 3 6.5 12 33
...32, 65 , 196, 785, ? , 23557
157, 159, 189, 319, ‘?’, 1 407 , 2749 Â
800    544    416    352    ?     304
18Â Â Â Â Â Â Â Â Â Â 434Â Â Â Â Â Â Â Â 642Â Â Â Â Â Â Â Â 746Â Â Â Â Â Â Â Â 798Â Â Â Â Â Â Â Â ?
...
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