A girl gets 65 marks out of 80. What percent marks did she get?
Find the percentage of marks.
Total marks =80
Marks obtained =65
Required percentage =6580×100
=65×108, divide numerator and denominator by 10
=65×54, divide 65 by 4
=16.25×5
=81.25
Hence, she got 81.25%marks.
A team consists of 6 boys and 4 girls and other has 5 boys and 3 girls. How many single matches can be arranged between the two teams when a boy plays against a boy and a girl plays against a girl?
Assume that each child born is equaly likely to be boy or a girl. IF a family has two children, what is the conditional probability that both are girls given that the youngest is a girl?
atleast one is a girl?