Question
In how many ways can 12 girls be seated in a row of 50
seats so that no girl sits on the adjacent seat?Solution
There are 49 vacant seats among 50 seats. If no two girls sit together then the total number of seats will be=49-12=37 Â Hence, the total way of seating 12 girls on 37 seats is =37P12 =37!/25!
562, 628, 698, ?, 850
44, 42, 46, 38, 54, ?
If series II follows the same sequence pattern as series I shown below, determine the value of 'p'.
Series I: 3, 4, 9, 34, 159, 784
Se...
What will come in place of the question mark (?) in the following series?
28, 45, 75, 118, 174, ?10, ?, 50, 100, 250, 500
10296/72 + 3040 = (? × 4) + 1395
What will come in place of the question mark (?) in the following series?
45, 68, 114, 183, 275, ?
135, 148, ?, 184, 207, 236
4, 9, 25, ?, 121, 169
What will come in place of the question mark (?) in the following series?
20, 21, 30, 55, 104, 185, ?
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