Foundation June 2023 Paper 3 Q23
23 It takes 14 hours for 5 identical pumps to fill a water tank.
How many hours would it take 4 of these pumps to fill another water tank of the same size? (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| 17.5 | P1 | for a first step, eg \(5 \times 14\ (= 70)\) or \(14 \div 4\ (= 3.5)\) or \(5 \div 4\ (= 1.25)\) or \(4 \div 5\ (= 0.8)\) |
| A1 | oe |
Additional guidance
Could be done algebraically.
11.2 as answer scores no marks.