Some equations are solved on the basis of certain systems. On the same basis find out the correct answer for the unsolved equation.
If 13 × 12 = 651 and 41 × 23 = 448, then 24 × 21 = ?
Explanation:
13 × 12 ⇒ 31 × 21 = 651 41 × 23 ⇒ 14 × 32 = 448
Similarly, 24 × 21 ⇒ 42 × 21 = 504
Hence, option (a).
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