Question
If all the digits of the number '759621384567' are
written in decreasing order from the right end, then what is the product of third and sixth digit from the left end?Solution
Original number: 7 5 9 6 2 1 3 8 4 5 6 7 Digits in decreasing order from the right end: 9 8 7 7 6 6 5 5 4 3 2 1 So, the product of third and sixth digit from the left end is: (7 x 6) = 42.
7 15 44 89 ? 533
...210Â Â Â Â 211Â Â Â Â Â 207Â Â Â Â 223Â Â Â Â Â 159Â Â Â Â Â ?
...Select the number from among the given options that can replace the question mark (?) in the following series.
8, 27, 64, 125, 216, ?
14, 28, 54, 98, 154, 224
72 85 103 126 154 ?
...9Â Â Â 4.5Â Â Â 4.5Â Â Â 9Â Â Â 36Â Â Â ?
640Â Â Â Â 322Â Â Â Â Â 164Â Â Â Â Â Â 86Â Â Â Â Â 48Â Â Â Â Â ?
...Four terms are in proportion. The first, second and fourth terms are 4, 22, and 33. Find the third term.
59, 170, 301, 452, ?, 814
18 113 559 2247 6721 13451
...