Maths-
General
Easy
Question
The number of different words of three letters which can be formed from the word "PROPOSAL", if a vowel is always in the middle are-
- 53
- 52
- 63
- 32
The correct answer is: 53
We have seen that the total number of positive integral solutions of abc = 24 is 30. We observe that any two of the factors in each factorization may be negative. Hence,
Number of integral solutions= Number of positive integral solutions+ Number of integral solutions having two negative factors.
Thus total number of solution is 120.
C : If consonant is filled.
2P, 1R, 1S, 1L, 2(O), 1A
4.1 +
4.1 +
1.2 +
-----------------
Total 53
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