Question
A sum of money invested for 2 years at 20% compounded
annually and similar money invested for 3 years on simple interest at 10% per annum. If the difference between interests is Rs. 280, then find the sum of money.Solution
Effective rate of interest for CI = x + y + (xy/100) = 20 + 20 + (20 × 20)/100 = 44% Effective rate of interest for SI = 3 × 10 = 30% Difference in rates = 44 - 30 = 14% Let sum be S. Hence, 14% of S = 280 ⇒ S × (14/100) = 280 ⇒ S = 2,000
The following expressions form a series followed by a (?). Find the odd one out first and then find that what will come in place of the question mark (?...
104 106 110 113 ? 126
A’ is the nth term of the given series and ‘B’ is the (n + 1)th term of the given
series. Choose the correct statement from the following s...
157, 159, 189, 319, ‘?’, 1 407 , 2749
Complete the series choosing the missing number.
8, 13, 20, ____, 40.
24 47 137 ? 2679 16049
...315 146 267 ? 235 210
8 24 12 ? 18 54
Look at the below pattern and complete the series: 11, 15, 22, 26, 33, 37, 44, ?
8 20 36 56 80 ?
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