Question

If 4 $\times$ 8 = 42; 6 $\times$ 4= 23; 8 $\times$ 6 = 34 then 2 $\times$ 4 = ?

• A. 25
• B. 21
• C. 26
• D. 42
• E. 24

Answer 1

The correct option is B 21

The rule is : Divide the number by 2 and write the result in the reverse order
4×8=482=24⇒424×8=482=24⇒42 etc.
∴2×4=242=12⇒21