Level 3
The length of ribbon A and ribbon B is 30.55 m. The total length of ribbon B, C and D is 58.93 m. The length of ribbons C, D and E is 64.53 m. Ribbon E is twice the length of ribbon A. Find the length of ribbon A. Give the answer in metres.
Level 3
A box containing 60 folders had a mass of 5.01 kg. A box containing 25 post-it-pads has a mass of 6.21 kg. The mass of each post-it-pad was thrice that of each folder. Find the mass of the empty box in grams.
Level 3
When an ice box is packed with 25 identical bottles of soda, it has a mass of 18.4 kg. When the ice box is packed with 30 identical packets of milo, it has a mass of 7.5 kg. A bottle of soda weighs 470 g more than a packet of milo. What is the mass of the empty ice box in kg?
Level 3
The number of silver crayons is twice the number of blue crayons. The number of blue crayons is 14 more than the number of gold crayons. The total number of crayons is 138. The cost of each silver crayon is $3.80 and the cost of each gold crayon is $1.50. The total cost of all the crayons is $374.20.
Level 3
Andrew, Bryan and Charlie had the same number of marbles. Charlie gave 0.5 of his marbles to Bryan. Then Bryan gave 0.25 of his marbles to Andrew. Finally, after Bryan gave 30 marbles to Charlie, he had the same number of marbles as Charlie. How many marbles did Charlie have at first?
Level 3
For every magazine Tommy sells, he gets $1.75 as commission. He gets an additional $1.50 for every 8 magazine sold. How many magazines did Tommy sell if he earned $50 in commission?
Level 3
Mr Lee organised a lucky draw event. He spent $382.20 on some toys and pouches. He bought 6 more pouches than toys. A toy costs $14.70 and a pouch costs $4.90. How many pouch did Mr Lee buy?
Level 3
Two different brands of detergent powder are on promotion in a supermarket. Ms Ong wants to buy 30 kg of detergent. How much will she save if she buys Brand B detergent powder instead of Brand A?
Level 3
Two different brands of detergent powder are on promotion in a supermarket. Ms Ong wants to buy 30 kg of detergent. How much will she save if she buys Brand B detergent powder instead of Brand A?
