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52-9-48-31-27-13-65-




Question Number 6280 by prakash jain last updated on 21/Jun/16
52 : 9 :: 48 : 31 :: 27 : 13 :: 65 : ?
$$\mathrm{52}\::\:\mathrm{9}\:::\:\mathrm{48}\::\:\mathrm{31}\:::\:\mathrm{27}\::\:\mathrm{13}\:::\:\mathrm{65}\::\:? \\ $$
Commented by prakash jain last updated on 21/Jun/16
The question from a mental ability test.
$$\mathrm{The}\:\mathrm{question}\:\mathrm{from}\:\mathrm{a}\:\mathrm{mental}\:\mathrm{ability}\:\mathrm{test}. \\ $$
Answered by Rasheed Soomro last updated on 22/Jun/16
52 : 9 :: 48 : 31 :: 27 : 13 :: 65 : ?  52:(5×2−1) ::  48:(4×8−1) :: 27:(2×7−1) :: 65:(6×5−1)  52 : 9 :: 48 : 31 :: 27 : 13 :: 65 : 29
$$\mathrm{52}\::\:\mathrm{9}\:::\:\mathrm{48}\::\:\mathrm{31}\:::\:\mathrm{27}\::\:\mathrm{13}\:::\:\mathrm{65}\::\:? \\ $$$$\mathrm{52}:\left(\mathrm{5}×\mathrm{2}−\mathrm{1}\right)\:::\:\:\mathrm{48}:\left(\mathrm{4}×\mathrm{8}−\mathrm{1}\right)\:::\:\mathrm{27}:\left(\mathrm{2}×\mathrm{7}−\mathrm{1}\right)\:::\:\mathrm{65}:\left(\mathrm{6}×\mathrm{5}−\mathrm{1}\right) \\ $$$$\mathrm{52}\::\:\mathrm{9}\:::\:\mathrm{48}\::\:\mathrm{31}\:::\:\mathrm{27}\::\:\mathrm{13}\:::\:\mathrm{65}\::\:\mathrm{29} \\ $$$$ \\ $$
Commented by prakash jain last updated on 22/Jun/16
Thanks a lot.
$$\mathrm{Thanks}\:\mathrm{a}\:\mathrm{lot}. \\ $$

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