1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The number of all numbers having 5 digits, with distinct digits is
A
99999
B
$$9 \times {}^9{P_4}$$
C
$${}^{10}{P_5}$$
D
$${}^9{P_4}$$
2
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
Out of 7 consonants and 4 vowels, words are formed each having 3 consonants and 2 vowels. The number of such words that can be formed is
A
210
B
25200
C
2520
D
302400
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