Level 3
The total mass of Tom, Kelsey and Linda is 120 kg. Kelsey's mass is 6 kg more than Tom's and 18 kg more than Linda's. Find the total mass of Tom and Linda.
Level 3
There are 1500 English books in a library. 35 of the books are novels. 34 of the remaining books are comics. The rest of the books are textbooks. How many textbooks are there in the library?
Level 3
An even 5-digit whole number is made up of different digits. The digit in the ten thousands place is the smallest even number. It is 5 less than the tens digit. The thousands digit is twice of the hundreds digit. The hundreds digit is 4 less than the tens digit. What is the smallest possible 5-digit whole number?
Level 3
Samuel, Celine and Krishnan collected a total of 139 bottle caps. Samuel collected 24 more bottle caps than Celine while Celine collected 35 more bottle caps than Krishnan. How many bottle caps did Celine collect?
Level 3
Jason bought a CD, a T-shirt and a watch for $76. The T-shirt cost $8 more than the CD and the watch cost $12 more than the T-shirt. How much did the T-shirt cost?
