Question
Quantity I. A sum of money becomes tripple in 4 years at
compound interest, compounded annually. In how many years it will become 9 times? Quantity II. What must be the rate of interest if a given amount tripled itself in 20 years? Study the following information carefully and answer the Questions given below:Solution
Quantity II. Since the amount was Rs 100. It becomes Rs 300 in 20 years. Rs 300 – Rs 100 = Rs 200 interest In 20 years, interest is Rs 200 In 1 year, the interest is Rs 200/20 Rate of interest = 10% per annum Hence Quantity I < Quantity II
32   33    29   38    ?      47    11
...1236, 1445, 1675, 1933, 2226, ?
24, 42, 60, ?, 96, 114
What will come in place of the question mark (?) in the following series?
45, 88, 261, 1300, ?
14, 15, 24, 49, 98, 179, ?
11          20          ?             64          112        192
...22, 37, 63, 98, 148, ?
14, 20, 29, 44, 65, ?
24, 12, 18, 45, ?, 708.75
18, 30, 50, 102, 282, ?