Question
Which of the following numbers is divisible by
11?Solution
8463729: Difference = (8 + 6 + 7 + 9) – (4 + 3 + 2) = 30 – 9 = 21
6938254: Difference = (6 + 3 + 2 + 4) – (9 + 8 + 5) = 15 – 22 = 7
2471865: Difference = (2 + 7 + 8 + 5) – (4 + 1 + 6) = 22 – 11 = 11
3527164: Difference = (3 + 2 + 1 + 4) – (5 + 7 + 6) = 10 – 18 = 8
2471865 is divisible by 11.
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44   45    41   50    ?      59    23
...221, 100, 0, -81, ?
...900 Â Â Â 90Â Â Â 18Â Â Â ? Â Â Â Â 2.16Â Â Â Â 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187
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