Question
If '+' means '×', '×' means '-', '÷' means '+', and
'-' means '÷', select the number from the given options that can replace the question mark '?' in the following equation. 320 ÷ 125 + 5 × 6 ÷ 24 - 12 = ?Solution
We apply the given operations: 320 ÷ 125 + 5 × 6 ÷ 24 - 12 = ? Becomes: 320 + 125 × 5 - 6 + 24 ÷ 12 Now calculate: 320 + 625 - 6 + 2 320 + 625 - 4 = 941.
56. 23Â Â Â Â Â 45Â Â Â Â Â 89Â Â Â Â Â 177Â Â Â Â Â 363Â Â Â Â Â 705
...625, 5, 125, 25, 25, ? , 5
There are three series given below which are following with the same pattern.
Series I: 9, 10, 32, 163, 1145
Series II: 4, B, C, D, E
...5 14 56 220 1125 6786
...2,0, 9, 20, ‘?’, 714
7 29 ? 129 211 349
25Â Â Â Â Â Â Â Â Â Â 34Â Â Â Â Â Â Â Â Â Â 61Â Â Â Â Â Â Â Â Â Â 106Â Â Â Â Â Â Â Â 169Â Â Â Â Â Â Â Â ?
...9 10 6 15 -1 ?
...22   39    58    81   ?      141
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
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