10 : 101 :: 20 : ?
A201
B400
C102
D401
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Related Questions:
If 3 x 4 = 25, 5 x 6 = 61, 6 x 7 = 85, then 9 x 10?
Electricity is related to 'wire' in the same way 'water' is related to:
തോക്ക് : ബുള്ളറ്റ് : : ചിമ്മിനി : ?
A 
B 
C 
D 
Select the number- pair in which the two numbers are related in the same way as the two numbers of the following number- pair.
5 ∶ 55