Answer:
F = 3R + 5
Step-by-step explanation:
Let the Roberts age be R
Also, let the Roberts father's age is F
It is given that Roberts father is 5 years older than 3 times Robert's age which means that Roberts Father's age is 5 years more than 3 times the age of Roberts
∴ Roberts Father's age is: 3 times of Robert age + 5 years
⇒ F = 3 × R + 5
⇒ F = 3R + 5
which is Roberts Father's age.
3/8
So, three outcomes give two heads and a tail (HHT, HTH, THH). Therefore, the probability of getting two heads and a tail is 3/8.
5(x+3)........ ...........
