plumbeaver701

Ray scored 75 marks for his first math test. His math score increased by 20% on his second math test. However, for his third math test, his math score decreased by 20%. What was his math score for his third math test?

There are 5% fewer girls than boys in a badminton club. Given that there are 4 more boys than girls, find the total number of members in the club.

Teacher's comment:  Let the total number of boys be 100%

Jason had 40% fewer coins than Tom. Jason gave his sister some of his coins. As a result, the number of coins he had decreased by 25%. How many coins did Jason have left in the end if both of them had 58 coins altogether in the end?

X is a 2-digit number. When X is divided by 5, it has a remainder of 2. Another 2-digit number, Y, when divided by 20, has a remainder of 3. What is the largest possible difference between the two numbers? 

The average of three 2-digit numbers is 80. One of the numbers is 76. What is the largest difference between the other two numbers?