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77, 49, 36, 18, ?? Question: What is the missing number?
Last Post 05 Aug 2014 12:40 AM by Suleman Zafar Paracha. 3 Replies.
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edu gaspar
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04 Aug 2014 12:18 AM
    77, 49, 36, 18, ?? Question: What is the missing number?
    Suleman Zafar Paracha
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    Posts:5

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    04 Aug 2014 08:54 PM
    think it will be 15...
    77 - 36 = 41
    49 - 18 = 31
    so
    36 - 15 = 21...
    Suleman Zafar Paracha
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    04 Aug 2014 09:34 PM

    Posted By Suleman Zafar Paracha on 05 Aug 2014 01:54 AM
    think it will be 15...
    77 - 36 = 41
    49 - 18 = 31
    so
    36 - 15 = 21...


    Above is not the correct answer. but this is
    77 : 7*7 = 49
    49 : 4*9 = 36
    36 : 3*6 = 18
    18 : 1*8 = 8
    Suleman Zafar Paracha
    New Member
    New Member
    Posts:5

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    05 Aug 2014 12:40 AM

    Posted By Suleman Zafar Paracha on 05 Aug 2014 01:54 AM
    think it will be 15...
    77 - 36 = 41
    49 - 18 = 31
    so
    36 - 15 = 21...


    Above is not the correct answer. but this is
    77 : 7*7 = 49
    49 : 4*9 = 36
    36 : 3*6 = 18
    18 : 1*8 = 8
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