Rates I
Interactive practice questions
Which of the following is cheaper per item: $6$6 pencil cases for $\$24$$24 at Shop ZYX or $9$9 pencil cases for $\$54$$54 at Shop PWR?
What is the cost of a single pencil case at Shop ZYX?
What is the cost of a single pencil case at Shop PWR?
Hence which is the best place to buy pencil cases, if you want the best price per item?
Shop ZYX
Shop PWR
Which is cheaper: $148$148 cherimoyas for $\$355.20$$355.20 at Shop ZYX or $252$252 cherimoyas for $\$655.20$$655.20 at Shop PWR?
An industrial detergent requires $19$19 mL of water to be added to every $1$1 mL of the detergent for safe usage.
How many litres of water must be added to $610$610 mL of detergent?
The admission for a concert starts at 6pm and closes at 7pm. If there are 900 people attending and they arrive at a constant rate, what is the flow of people per minute?