Question

.4. In a hospital 5% of all the childbirth cases result
in twins. What is the approximate percentage of
twins out of total children born?
(a) 5%
(b) 7.6%
(c) 9.5 %
(d) 10.4%​

Answer 1

Answer:

9.5%

100 child births - 5% twins born , so no of children born = 95+10(5*2) = 105.

Percentage of twins out of total children born = (10/105) *100 = 9.52%.

Answer 2

The answer to this question will be option C, 9.5%.

Given,

In a hospital, 5% of all childbirth cases result in twins.

To Find,

What is the approximate percentage of twins out of total children born?

Solution,

This question can be solved by following these simple steps.

Let the number of childbirths in the hospital be 100.

Then, 5% of the childbirths will be twins.

Thus, 5% of 100 = 5 childbirths will be twins.

Number of children born = 95 + (5×2) = 105

(∵ 95 childbirths are regular and 5 childbirths result in twins).

Number of twins = 10

Approximate percentage of twins out of total children =

                             $\frac{10}{105} \times 100=\ 9.5\% \approx$

∴ Approximately 9.5% of children born are twins.

#SPJ2