1. Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
58 × 12 = 4, 37 × 96 = 5,
11 × 20= 2, 42 × 12 =?
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By: anil on 05 May 2019 01.54 am
The number on the right is obtained by taking the square root of sum of all the digits on the left. Eg : 58 × 12 = $$sqrt{5+8+1+2}=sqrt{16}=4$$ and 37 × 96 = $$sqrt{3+7+9+6}=sqrt{25}=5$$ and 11 × 20 = $$sqrt{1+1+2+0}=sqrt{4}=2$$ Similarly, 42 × 12 = $$sqrt{4+2+1+2}=sqrt{9}=3$$ => Ans - (B)
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