CAPS · Grade 8 · R
At the Falcons club there are 5 coaches for 100 players; at the Buffaloes club there are 2 coaches for 64 players. Which has the better coach : player ratio? Show your working.
Rangers catch and tag 56 impala in a private game reserve, then release them. Later they catch a second sample of 75 impala and find that 14 of them are tagged. Estimate the total impala population.
A recipe for 3 people needs 90 ml of sugar. How much sugar is needed for 7 people?
On a building plan drawn to a scale of 1 : 50, the kitchen wall measures 10 cm. Calculate the actual length in m.
Simplify the ratio 20 : 25.
Rangers catch and tag 56 impala in a private game reserve, then release them. Later they catch a second sample of 35 impala and find that 8 of them are tagged. Estimate the total impala population.
2 workers can build a wall in 19 days. How many days would 14 workers (working at the same rate) take?
Increase 60 in the ratio 5 : 4.
A house plan is drawn to a scale of 1 : 100. In real life the passage is 13 m. Calculate the length on the house plan, in cm.
A architect's plan is drawn to a scale of 1 : 200. In real life the assembly-hall wall is 28 m. Calculate the length on the architect's plan, in cm.
A house plan is drawn to a scale of 1 : 100. In real life the carport is 10 m. Calculate the length on the house plan, in cm.
Decrease 72 in the ratio 7 : 9.