Question
A sum of Rs. 20000 was invested in a scheme. The rate of
simple interest offered for three years was 10%, 6% and 4% per annum respectively. After three years, the whole amount was withdrawn and reinvested in a scheme which offered an interest rate of 20% compounded annually for 3 years. What is the total interest earned during the six year period?Solution
ATQ, P = 20000 Simple interest for first 3 years (rates 10%, 6%, 4%): SI1 = 20000 * (10+6+4)/100 SI1 = 20000 * 20/100 SI1 = 4000 Amount after 3 years: A3 = 20000 + 4000 A3 = 24000 Compound interest for next 3 years @ 20% p.a.: A6 = 24000 * (1.20)^3 A6 = 24000 * 1.728 A6 = 41472 Interest for last 3 years: SI2/CI2 = 41472 - 24000 SI2/CI2 = 17472 Total interest in 6 years: Total interest = 4000 + 17472 Total interest = 21472
What will come in place of the question mark (?) in the following series?
22, 28, 37, ?, 72, 102
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
9 25 ? 121 221 337
...7    12    34    117    ?   2465   14820
...- What will come in place of (?), in the given number series.
100, 95, 85, 70, ?, 25 What will come in place of the question mark (?) in the following series?
45, 68, 114, 183, 275, ?
What value should come in the place of (?) in the following number series?
56, 28, 28, 42, 84, ?
216, 81, 297, 378, ?, 1035, 1728
1221,     1100,     1000,     919,       ?
...18, 37, 60, ?, 120, 157
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