How many pairs of letters are there in the word " CASTRAPHONE" which have as many letters between them in the word as in the alphabet?
Answer: C
Looking into the alphabets there are five such pairs namely ON, HONE, ST, TRAPHO, RAP.
1. ON - NO
2. HONE - EFGH
3. ST - ST
4. TRAPHO - OPQRST
5. RAP - PQR