Question

4,5,9,16,26----?find one? mental ability?​

Answer 1

Answer:

$4 - 5 = 1 \\ 9 - 5 = 4 \\ 16 - 9 = 7 \\ 26 - 16 = 10 \\ th \: difference \:between \: these \: answers \: \\ (1.4.7.10) \: is \: three \: \\ so \: 26 = 13(so \: that \: difference \: between \: 13 \: ans \: 3 \: is \: 10 \: \\ now \: add \: 13 \: and \: 26 \\ so \: correct \: ans \: is \: 39$

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