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ssc cgl

· started a discussion

· 1 Months ago

please explain in detail (Question: 246299.0 )

please explain in detail..

Question:
In a maternity centre 5% of all the child birth cases result in twins. What is the approximate percentage of twins out of the total children born?
Options:
A) 5%
B) 7.6%
C) 9.5%
D) 10.4%
Solution:

Ans: (c)

Ram Nath De

· commented

· 1 Months ago

Let the total number of child birth cases be 100.
5% case out of these 100 cases resulted in twin births => 5 cases of twin births => 10 twin children.
Rest 95% are single births => 95 children.
Therefore, total no. of children = 10 + 95 = 105.
Hence, % of twin children over total no. of children = (10/105)x100 % ~ 9.5 %.

Bhola shankar Singh

· commented

· 1 Months ago

sir please explain i can't understand how it is happen
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