Question
A sum of money at simple interest amounts to Rs. 815 in
3 years and to Rs. 854 in 4 years. The sum is:Solution
SI for 1 year = Amount (4 years) - Amount (3 years) = 854 - 815 = Rs. 39. SI for 3 years = 39 × 3 = Rs. 117. Principal (Sum) = Amount (3 years) - SI (3 years) = 815 - 117 = Rs. 698.
24    12    ?    24  96    768
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
48, 24.5, ?, 39.75, 81.5, 206.25, 621.75
5, 18, 39, 68, 105, ?
600 Â Â Â 60Â Â Â 12Â Â Â ? Â Â Â Â 1.44Â Â Â Â 0.72
What will come in place of the question mark (?) in the following series?
72, 108, 172, ?, 416, 612
30          162        344        ?             890        1270
...24 36 72 108 216 ?
7   4   5   9   20    ?    160.5
- What will come in place of the question mark (?) in the following series?
6, 6, 9, ?, 32, 56
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