Question
Anil initiated his financial journey by investing Rs.
7500 in a Contra fund, which offered a simple interest rate of 18% per annum for a duration of 2 years. After this period, he harnessed the compounded power of the accumulated amount by transferring it to another fund with an interest rate of 20% per annum, compounded annually, for 2 years. Determine the total interest earned by Anil at the end of four years ?Solution
ATQ, Amount accumulated after 2 years = 7500 × 0.18 × 2 + 7500 = 2700 + 7500 = Rs. 10200 Amount accumulated after 4 years = 10200 × [(1.2)2 – 1] = 10200 × 0.44 = Rs. 4488 Hence Required interest = 10200 + 4488 – 7500 =  Rs.7188
D irection: Which of the following will replace ‘?’ in the following series.
543,’?’, 564 ,588, 660
...10 625 50 125 250 25 ?
...18 Â Â Â Â 32 Â Â Â 50 Â Â Â 72 Â Â Â Â 98 Â Â Â Â ?
1 6 13 24 41 ?
56, 57, 49, 76, 12, ?
If 2.5 3.5 x 30 124 625
Then, x ² - 1 - 2x = ?
...9Â Â Â 4.5Â Â Â 4.5Â Â Â 9Â Â Â 36Â Â Â ?
A restaurant has a special offer where a family meal costs ₹1,200 for 4 people. If a family of 6 orders this meal and then orders 2 additional family ...
512   493   476   ?    448    437  . Â
13 15 ? 63 143 293
...
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