यह प्रश्न निम्नलिखित शब्दों पर आधारित है: MAT RAT DUE RED अंग्रेजी वर्णमाला क्रम में बाईं ओर से पहले शब्द (MAT) के दूसरे अक्षर और बाईं ओर से चौथे शब्द (या दाईं ओर से पहले शब्द RED) के दूसरे अक्षर के बीच कितने अक्षर हैं?

Evaluate the given expression by using the standard alphabetical positions of the letters (A=1, B=2, etc.), and find the letter corresponding to the final result: (B × 2) + (E ÷ 1) - A

This question is based on the following words: SUN, RAT, HIT, BEG. In each of the words, each vowel is changed to the letter immediately following it in the English alphabetical order and each consonant is changed to the letter immediately preceding it in the English alphabetical order. In how many letter-clusters thus formed, will no vowel appear?