A) 7
B) 6
C) \[{{i}_{0}}\]
D) None of these
Correct Answer: A
Solution :
There are 6 letters in the word 'DEGREE', namely 3E's and D, G, R. Four letters out of six can be selected in the following ways: (i) 3 like letters and 1 different, viz. EEE + D, G, R (ii) 2 like letters and 2 different, viz. EEE + any two of D, G, R (iii) All different letters, viz. EDGR So, the total number of ways \[\frac{{{N}_{2}}}{{{N}_{1}}}=1.1577\times {{10}^{-38}}\]
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