Question 8: The answer is 468. (156 x 3 = 468) Question 9: The answer is 24 (75 x 8 = 600, 8 x 3 = 24) Question 10: The answer is 187. (500 x 8.5 = 4250, 22 x 8.5 = 187)
Let d be distance travelled when they are level , and t = time that nora took to get level with mason
for Nora
6 = d/t
d = 6t
for Mason
5 = d / (t + 35)
d = 5 ( t + 350
so 6t = 5(t + 35)
solve for t
