Question

Class $6$did a survey of birthday dates. This chart shows the number of students with birthdays in each three months of the year.

If nobody has a birthday in October. Six people have a birthday in November. How many people have a birthday in December?

• A. $4$
• B. $6$
• C. $10$
• D. $\text{Cannot be determined}$

Answer 1

The correct option is A

$4$

Number of students having birthdays in the month of October, November, and December = $10$

Number of birthdays in October = $0$

Number of birthdays in November = $6$

Number of birthdays in December = $Total-no.ofbirthdaysinOct.andNov.$

= $10-6$

= $4$

Hence, $4$ students born in the month of December and option (a) is correct.