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