Question

In an examination, 450 candidates were
boys and 550 were girls. If 32% of the boys
and 38% of the girls passed the
examination, the percentage of failed
candidates is:​

Answer 1

Answer:

number of failed students out of 1000 is 647

% of failed candidates 64.7 %

Answer 2

Answer:

64.7%

Step-by-step explanation:

32% of 450---no. of boys passes

$\frac{32}{100} \times 450 \\ 16 \times 9 \\ = 144$38% of 550-----no. of girls passed

$\frac{38}{100} \times 550 \\ 19 \times 11 \\ = 209$

so no of passed candidates = 353

no. of failed = 1000-353

647

so percent of failed candidates

=

$\frac{647}{1000} \times 100$

= 64.7%