If 11 ; 31 = 1023 and 22 ; 31 = 2046, then what is the value of 4 ; 40?
Show answer & explanation
Correct answer: C
Explanation
Rule: (a:b)=a×b×3
Just as
11 : 31
11×31=341
341×3=1023
And
22 : 31
22×31=682
682×3=2046
Similarly,
4 : 40
4×40=160
160×3=480
Correct answer: 480