Directions : In each of the following questions, four words have been given out of which three are alike in a certain way and one is different. Choose out the odd one.

If Ganesh ranks 9th from the top and 38th from the bottom, then how many students are there in the class?

Select the option that is analogous to the given pair.
CD : HI

A word is given in capital letters, it is followed by four words. Out of these four words the three words cannot be formed from the letters of the word in capital letters. Point out the word which cannot be formed from the letters of the given word in capital letters.
GASTROENTEROLOGIST

If '+' means '÷', '–' means '+', '×' means '–' and '÷' means '×' then, 8 ÷ 4 - 6 + 3 × 4 =?  

Directions: From the given alternative words, select the word which can be formed using the letters of the given word.

PORTFOLIO 

Find the missing number?

Statements:
I. Some appliances are electronic.
II. Some electronics are tube lights.
Conclusions:
I. Some appliances are tube lights.
II. No tube light is an appliance.