The father's age is 4 times his daughter's age. After 20 years, the age of the father will be 2 times his daughter's age. The present ages of the daughter and the father are, respectively.

Sengkong picks a three digit number and subtract it from the same number after reversing order of its digits. If this difference is divided by 11, find the remainder.

A.

2

B.

1

C.

0

D.

Can not be determined without knowing exact number

Kenji is solving a question, where a given number has to be multiplied by 36. Kenji did not read the question carefully, and multiplied the number by 6 (instead of 36). If his answer is 360 less than the correct answer, find the given number.

Number of employees in a company increases by 30% every year. If there are 300 employees in the company, find the number of employees in company after 2 years.

A box contains 4 orange and 5 red balls. Raksa takes out a ball, puts it back, and then takes out another ball. What is the probability that both balls were orange?