Question
A sum of Rs. 2000 earns a simple interest of Rs. 600 in 5
years at R% per annum. Calculate the simple interest on Rs. 2500 at the rate of (R + 2)% per annum in 4 years.Solution
ATQ,
600 = 2000 × R% × 5
R = 600 / 100 = 6
Therefore, required interest = 2500 × (6 + 2)% × 4 = Rs. 800
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85, 117, 170, 244, 339, 465 1116, 1135, 1158, 1187, 1224, 1278.
6.5, 11, 22, 25.5, 51, 54.5
128Â Â Â 384Â Â Â 48Â Â Â 144Â Â Â 20Â Â Â 54
15, 30, 30, 20, 10, 8
Find the wrong number in given number series.
2048, 2258, 2378, 2438, 2454, 2468
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...147 490 707 831 895 922 930
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12, 16, 28, 48, 78, 112Â
Find the wrong number in the given number series.
148, 146, 140, 128, 108, 68
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