Question discussion

Select the related number from the given alternatives.. 39 : 52 :: 51 : ?

33309Medium 3 replies 1,075 views
0
CCommunity
I am not sure, may be 40 is correct
0
CCommunity
Answer : 3) 68
Logic:
6sqare (36) +3 : 7sqare(49) +3 :: 8sqare(64)-13: 9Sqare(81)-13
0
CCommunity
Expression $= 39 : 52 :: 51 : ?$

The pattern followed is $= 3n:4n$, where n is a natural number

Eg $= 3(13):4(13)=39:52$

Similarly, 3n=51

$=\frac{51}{3}=17$

Thus, missing number $= 4\times17=68$