Question
Seven books out of which 4 are novels and rest are comics
have to be arranged on a shelf. Find the number of ways of arrangement in which all four novels are not placed together.Solution
Total number of ways of arrangement = 7! = 5040 ways
If we consider 4 novels as one book, number of ways of arrangement among themselves = 4! = 24 ways
Number of ways of arrangement of remaining 4 items = 4! = 24 ways
Therefore, required number of ways = 5040 β (24 Γ 24) = 4464 ways
Select the option in which the given figure is embedded. (Rotation is NOT allowed.)
The first two figures are related in a certain way. Choose the correct option to replace the question mark β(?)β which has the similar relation with...
If βAβ means β+β, βBβ meansΒ βxβ, βCβ means βΓ·β, and βDβ means β-β, then which of the following equation(s) is/are cor...
What should come in place of the question mark (?) in the given series?
13, 22, 33, 46, 7, 78, 97
Select the number from among the given options that can replace the question mark (?) in the following series .
189, 532, 316, ? , 377
...Statement: H
F β₯ U = M conclusion:
i) M> I
ii) P>
iii) H
Select the number-pair in which the two numbers are related in the same way as the two numbers of the following number-pair.
6 : 85
Which of the following numbers will replace the question mark (?) in the given series?
213, 199, 235, 221, 257, 243, ?
In a certain code if 'M' denotes 'Γ·', 'N' denotes 'Γ', 'O' denotes '+' and 'P' denotes '-', then what will be the value of 27M3N5P6O9?
Select the number from among the given options that can replace the question mark (?) in the following series.
13, 39, 65, 91, 117, ?