Tier A
Q1: There are several possible answers (as discussed in class)
Two possible numbers could be 84 and 504
Q2(a)(i) 216000 = 2^6 x 3^3 x 5^3 (ii) 518400 = 2^8 x 3^4 x 5^2
Q2(b)(i) 216000 = 60 x 60 x 60; cube root of 216000 = 60
Q2(b)(ii) 518400 = 720 x 720; square root of 518400 = 720
Q2(b)(iii) HCF = 43200
Q2(b)(iv) LCM of 60 and 720 = 720 (since 720 is also a multiple of 60)
Q3(i) 322
Q3(ii) 978
Tier B
4(a) 2^6 x 5^6
4(b) 1000
4(c) 100
Q5(i) 7
Q5(ii) 100
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