The lottery prize is £2 on the 1st week, £5 on the second week, £10 on the 3rd, £13 on the 4th, £26 on the 5th week and £29 on the 6th week. How much is the prize in the 10th week? How much more is the prize worth on the 14th week than the 11th week?
There's a pattern here on alternate weeks - can you spot it? Wk2 = Wk1 + £3 Wk3 = Wk2 x 2 Wk4 = Wk3 + £3 Wk5 = Wk4 x 2 Wk6 = Wk5 + £3 Therefore using this pattern for the following weeks, we get: Wk7 = £58 Wk8 = £61 Wk9 = £122 Wk10 = £125 Wk11 = £250 Wk12 = £253 Wk13 = £506 Wk14 = £509 So therefore Wk14 - Wk 11 is: £509 - £250 = £259. Week 14 prize money is worth £259 more than week 11
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