A number theory problem by fred fan

Number Theory Level 2

There are 2 charts, chart number 1 starts from the number 27 and adds by 3 and so on. Chart number 2 starts from the number 3 and multiplies by 2 each time. By the end of term 5, which chart will have a greater value?

Chart 1 Chart 2

Fred Fan by fred fan , 21, Canada

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2 solutions

B D
Jan 22, 2020
At beginning Term 1 Term 2 Term3 Term 4
Chart 1 27 27+3=30 30+3=33 33+3=36 36+3=39
Chart 2 3 3*2=6 6*2=12 12*2=24 24*2=48

39<48

Answer : Chart 2

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chart 1: 27, 30, 33, 36, 39

chart 2: 3, 6, 12, 24, 48

The fifth term of chart 2 is greater than the fifth term of chart 1. 48>39

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