Question

Number of ways of permuting the letters of the word “ENGINEERING” so that the order of the vowels is not
changed is

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

NNN GGR II EEE = $\frac{{11}_{P_6}}{3!.2!}=$ $\frac{{11}_{P_5}}{12}$ , (3! & 2! in Dr for 3N’s and 2G’s)