Question 135
If $$ 67 \times 25 = 6, 24 \times 12 = 3,$$ then find the value of $$ 90 \times 44 $$ = ?
Solution
67 $$\times 25 \rightarrow $$ (6+7) - (2+5) = 13-7 =6
24 $$\times 12 \rightarrow$$ (2+4) - (1+2) = 6 -3 =3
90 $$\times 44 \rightarrow$$ (9+0) - (4+4) = 1
$$\therefore$$ The correct answer is option B.
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