Question
A certain amount of money at simple interest amounts to
₹1,404 in 2 years and to ₹1,560 in 5 years. What is the rate of simple interest per annum ?Solution
Solution-
simple interest amounts in 2 years=1404
simple interest amounts in5 years=1560
ATQ-
2years=1404 … (1)
5years=1560 … (2)
Solving (2)-(1)
3=156
1=52
For equation (2)
Rate of interest in 5years= (52×5)/(1560-52×5)
= (260/1300)×100
=20%
Rate of interest per annum=20/5=4%
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127, 296, 585, 908, 1475, 2316
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2, 4, 8, 16, 33, 64
In each of the following number series, one term is wrong. Find the WRONG term.
5, 10, 19, 33, 49, 70
384, 1152, 144, 432, 56, 162
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41, 51, 63, 80, 101, 126
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51, 85, 119, 153, 187, 255
- Find the wrong number in the given number series.
5, 25, 30, 90, 92, 86 0 7 26 63 126 215
...150, 900, 300, 1800, 600, 3700, 1200
112, 130, 155, 196, 254, 342
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