Foundation June 2023 Paper 1R Q6
6 Niran is organising a baking competition and needs to buy 9.25 kilograms of flour.
Flour is sold in bags that each contain 750 grams of flour.
Each of these bags costs 58 Baht.
Niran can only buy whole bags of flour.
Niran buys the least number of bags of flour that he needs.
Work out the cost of the flour that he buys.
(4)
| Scheme | Marks |
|---|---|
| eg 9.25 × 1000 (= 9250) or 750 ÷ 1000 (= 0.75) | M1 |
| eg “9250” ÷ 750 (= 12(.333…) or 13) or 9.25 ÷ “0.75” (= 12(.333…) or 13) or 750 × 12 (= 9000) or 0.75 × 12 (= 9) or eg 750, 1500, 2250, ……., 9000 or 0.75, 1.5, 2.25, …….., 9 or 9250, 8500, 7750, ……., 250 or 9.25, 8.5, 7.75, ……., 0.25 | M1 |
| eg “13” × 58 | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: 754 | A1 |
| (4) | |
| (4 marks) |
Notes
M1: for a correct conversion
M1: for a method to calculate the number of bags required.
Ft incorrect conversion
or
for repeated addition to at least 9000 or 9 (allow one error) or for repeated subtraction to at least 250 or 0.25 (allow one error)
M2 for 750 × 13 (= 9750)
M1: for a complete method.
Ft incorrect conversion – an attempt must have been made at a conversion to gain this mark.
“13” must come from a number that is rounded up
or
ft subtraction/addition method to find the number of bags allowing only one error
“13” must come from a number that is rounded up
A1: cao
SCB1 for 9.25 ÷ 750 (= 0.123(333……))