A typical age problem
Question1 : Ann is three times as old as her little brother Bob. In five years, she will be only twice as old. How old is Ann now ?
Ann is fifteen years old .
Question1 : Solve the system of equations A = 3B and A+5 = 2(B+5) for variables A,B
A = 15, B = 5
Question1 : Kamol got a social exam of 95% if he scored 150 points completely. Find out how many tests Kamol can take ?
142.5 points.
Question2 : Mona is 12 years older than Ray. Ray is 3 years younger than Joan. If Mona is 21 years old, how old is Joan ?
12 years old.
Question2 : Solve the system of equations A+5 = 2(B+5) and A = 3B for multiple of A and B
75
Question2 : One of the school's football teams competed to win 75% of Number of times that compete If this team competes 24 times, how many times will they win ?
18 times.
Question3 : Ann is three times as old as her little brother Bob. In five years, she will be only twice as old. How long will Bob be as old as Ann now?
Ten years.
Question3 : Solve the system of equations A+5 = 2(B+5) for variables A if B is -4
-3
The percent in Thai is?
ร้อยละ