Question
A man deposited 40% of his salary to a bank which offers
compound interest at the rate of 10% p.a. If the interest earned by him from the bank after 2 years is Rs. 3990, find the monthly expenditure of the man which is 55% of his monthly salary.ÂSolution
Let the amount of money deposited in the bank be Rs. ‘x’. So, x × [(1.1)2 – 1] = 3990 0.21x = 3990, x = 19000 So, monthly income of man = 19000/0.4 = Rs. 47500 Required monthly expenditure of man = 55% of 47500 = Rs. 26125
Find the wrong number in the given number series.
8, 16, 24, 32, 32, 64
121Â Â Â Â Â 127Â Â Â Â Â Â 133Â Â Â Â Â Â 142Â Â Â Â Â Â 160Â Â Â Â Â Â 206
...Find the wrong number in given number series.
6490, 6377, 6294, 6211, 6138
11Â Â Â Â Â 29Â Â Â Â Â Â 45Â Â Â Â Â 59 Â Â Â Â Â Â 70 Â Â Â Â Â Â Â 81
...Find the wrong number in given number series.
2482, 2507, 2607, 2842, 3232, 3857
96, 480, 120, 360, 150, 750
4, 5, 12, 39, 160, 806
 7    12     33    126    635  Â
Find the wrong number in the given number series.
2, 3, 5, 7, 11, 13, 17, 2011, 1341, 3070, 5267, 8011, 11386