O-LevelMathematicsNumber4024/21 · Oct/Nov 2017 · Q110 Marks

Jasmine earns $12.50 for each hour she works. She works for 38 hours each week. She is given a pay increase of 6%. Calculate the total amount Jasmine earns each week after the pay increase.

(a)(i)Jasmine earns $12.50 for each hour she works. She works for 38 hours each week. She is given a pay increase of 6%. Calculate the total amount Jasmine earns each week after the pay increase.[3]
(a)(ii)Abdul earns $525 each week. He moves to a new job where he earns $462 each week. Calculate the percentage reduction in his earnings in his new job.[2]
(a)(iii)Maria is given a pay increase of 3%. After the pay increase, she earns $2472 each month. Calculate her monthly pay before the pay increase.[2]
(b)The exchange rate between dollars ($) and pounds (£) is $1 = £0.65 . The exchange rate between euros (€) and pounds is €1 = £0.74 . Dan changes €520 into pounds. He spends £260 and then changes the rest into dollars. Work out how many dollars he receives.[3]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2017). The mark or mark type is shown in brackets.

[3] M2 for 12.50 × 38 × 1.06 oe or 12.50 x 38 x 0.06 oe or M1 for 12.50 × 38 or 12.50 x 1.06 oe soi or 12.50 x 0.06 oe soi
[3] 503.5[0] final answer
[2] M1 for (525 – 462) ÷ 525 oe After M0, SC1 for answer 88
[2] 12
[2] M1 for 1.03x = 2472 soi
[2] 2400 nfww
[3] M1 for 520 × 0.74
[3] M1 for (their 384.8 – 260) ÷ 0.65
[3] 192

On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.