Question

In a combined test in English and Physics;
36% candidates failed in English; 28% failed
in Physics and 12% in both; find :
(i) the percentage of passed candidates.
ii) the total number of candidates appeared,
if 208 candidates have failed.​

Answer 1

Step-by-step explanation:

english failed nos =36%

physics failed nos =28%

both english and physics failed nos= 12

total no of person appear in exam 100

passed persons = 100-(36+28-12) =48%

noof person failed exam =208

total person appear in exam= x×52/100=208

x =208×100/52=400

Answer 2

Answer:

The solution is attached to this solution.