When 4 is added to one half of a number, the result is 14. What is the number?
A
20
B
25
C
30
D
21
Correct Answer: 20
মনে করি, সংখ্যাটি = x প্রশ্নমতে, x2 + 4 = 14⇒ x2 = 10.:. x = 20