© UCLES 2020
Key: C
Justification:
The cost of hiring a boat for 5 people for 4 hours is $153
$153 / 5 = $30.6
5
Sergej has a fishing boat which groups of up to 12 anglers can hire for a maximum of 6 hours.
His charges are detailed in the following table:
Number in Group
1-3
4-6
7-9
10-12
1 hour
$45
$81
$117
$153
2
hours
$69
$105
$141
$177
3 hours
$93
$129
$165
$201
4 hours
$117
$153
$189
$225
5 hours
$141
$177
$213
$249
6 hours
$165
$201
$237
$273
A group of 5 people want to hire the boat for 4 hours. They have
agreed to share the cost
equally between them.
How much will each member of this group pay towards the hire of Sergej's boat?
A
$25.50
B
$28.20
C
$30.60
D
$35.40
© UCLES 2020
Key: A
Justification:
33 of the creatures had a tail, so there were 12 Orps, which account for 24 of the horns. The
other 75
horns must belong to the Arps, so there were 25 Arps, and therefore 8 Urps.
6
A computer game involves the capturing of three types of mythical creatures: Arps, Orps and
Urps.
Arps have 6 legs, 3 horns and a tail.
Orps have 4 legs and 2 horns, but no tail.
Urps have 3
legs and a tail, but no horns.
The last time Billy played this game he captured 45 creatures with a total of 222 legs, 99
horns
and 33 tails.
How many of the 45 creatures that Billy captured were Urps?
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