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
Find the wrong number in the given number series.
16.5, 31, 82.5, 165, 412.5, 825169, 224, 293, 385, 497, 629
1, 5, 40, 385, 5005, 85085
- Find the wrong number in the given number series.
27, 38, 52, 70, 94, 122 - In the given number series, find the wrong number.
3, 6, 12, 25, 48, 96, 192 Find the wrong number in the given number series.
120, 240, 180, 160, 80, 32
35, 44, 28, 53, 19, 66
164, 141, 122, 105, 92, 80
- Find the wrong number in the given number series.
50, 64, 90, 134, 190, 260 20, 95, 220, 275, 620, 895