Level 3
Susan had a collection of 1910 red, blue and yellow beads. After Susan gave away 350 red beads, the number of red beads was 240 fewer than the number of blue beads. Given that the number of yellow beads was twice as many as the number of blue beads, how many red beads did Susan have at first?
Level 3
The length of Table X is twice that of Table Y. The length of Table Y is thrice that of Table Z. Find the length of Table X if Table Z is 146 cm long.
Level 3
Mark had thrice as much money as Paul. After Mark had spent $60, Paul had twice as much money as Mark. How much more money than Paul had Mark at first?
Level 3
A baby elephant weighs 85 kg. A young elephant is twice as heavy as a baby elephant. An adult elephant is thrice as heavy as a young elephant. Find the mass of the adult elephant.
Level 3
Dennis had 120 marbles more than Jean at first. After Dennis had given away 150 of his marbles to Calvin, Jean had thrice as many marbles as Dennis. Find the number of marbles Dennis had at first.
Level 3
Jerry bought 4 packets of biscuits. Katrine bought 2 times as many packets of biscuits as Jerry. If each packet costs $8, how much did Katrine spend on the biscuits?
