in an exam 2 /5 of the students get grade a . 35% of the students get grade b . 10 students get grade c. work out the number of students who get grade a

Arandom high school question but a hard one

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.