Level 3 PSLE
In a school canteen, chairs were arranged in rows such that there were exactly 19 chairs in each row. Mr Ong then brought 6 more chairs into the school canteen and rearranged all the chairs. There are now exactly 7 chairs in each row and 12 more rows than before. How many chairs are there in the school canteen in the end?
Level 3
Some notebooks can be arranged in exactly 15 per row. If the same number of notebooks is arranged in rows of 7 notebooks each, there will be 4 more rows and 4 notebooks left over. How many notebooks are there altogether?
Level 3
3 foreigners have the same mass as 5 locals. Each foreigner's mass is 16 kg more than each local. What is the total mass of the 5 locals in kilograms?
Level 3
At first, Randy had 160 more red beads than blue beads in a box. Each day, he took out 8 red beads and 5 blue beads from the box. After some time, he only had 20 blue beads left in the box.
How many beads did Randy take out from the box altogether?
Level 3
Mrs Lin bought 5 kg of shrimp and 2 kg of beef for $96. If she brought 2 kg of shrimp and 5 kg of beef, she would have to pay $3 less. How much did 1 kg of shrimp cost?