Sarthaks Test
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Find next three numbers in the following number patterns,

i) 50, 51, 53, 56, 60,…

ii) 77, 69, 61, 53,…

iii) 10, 20, 40, 80, …..

iv) 21/33, 321/444, 4321/5555

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1 Answer

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i) The pattern generating these numbers is

50, 50 + 1, 51 + 2, 53 + 3, 56 + 4, 60 + 5, 65 + 6, 71 + 7,

∴ 50, 51, 53, 56, 60, 65, 71, 78, ……

∴ The next three numbers will be 65, 71, 78

ii) The pattern generating these numbers is

77, 77 – 8, 69 – 8, 61 – 8, 53 – 8, 45 – 8, 37 – 8, 29

77, 69, 61, 53, 45, 37, 29, 21,

∴ The next three numbers will be 45, 37, 29.

iii) The pattern generating these numbers is

10, 10 + 10, 20 + 20, 40 + 40, 80 + 80, 160 + 160, 320 + 320,….

10, 20, 40, 80, 160, 320, 640,….

∴ The next three numbers will be 160, 320, 640.

iv) The pattern generating these numbers is

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