question_answer

In an exam every candidate took either physics or mathematics or both. 84% of the candidates too physics. Candidates who took mathematics were half of those who took physics. The total number of candidates was 1000. How many took both physic and mathematics?                            

A) 550                              

B) 520               

C) 560                              

D) 500             

Correct Answer: B

Solution :

Let, the number of candidate who took Physics are x and y who took Mathematics and Physics both. Then,                                   Hence, required no of students will be 520.