Question

24:64::39:? a=256 ,b =225,c=196,d=169.​

Answer 1

Answer:

$24 : 64 : : 39 : x \\ 24 : 64 = 39 : x \\ \frac{24}{64} = \frac{39}{x} \\ 24x = 39 \times 64 \\ x = \frac{ _{13 \: \: } \cancel{ 39} \times \cancel{ 64} _{ \: \: 8}}{ \cancel{ 24} _{ \: \: \cancel 8 _{ \: \: 1}}} \\ x = \underline{ \underline{ 104}}$