Question

4. In a combined test in Maths and Chemistry,
84% candidates passed in Maths, 76% in
Chemistry and 8% failed in both. Find :
(i) the percentage of failed candidates.
(ii) if 340 candidates passed in the test, then,
how many candidates had appeared in
the test ?
​

Answer 1

Answer:

5500

Step-by-step explanation:

math =84 percent candiates passed

chemistry =76 percent candiates passed

failed in both=8 percent

84+76+8=5840

5840-340=5500

5500 candidates appeared in test