Question

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

Answer 1

Answer:

i) Percentage of passed candidates = 48%

ii) Total number of candidates appeared = 400

Step-by-step explanation:

Percentage failed = % failed in Physics + % failed in English - % failed in both

= 36 + 28 - 12 = 52%

So, % passed = 100 - 52 = 48%

Number of candidates failed = 208, which is 52%

So, total number of candidates appeared = 208*100/52 = 400

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