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Let D = 3, L = 7 and A = 8. Find the other digits in the sum M A D + A S + A B U L L - Mathematics

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Question

Let D = 3, L = 7 and A = 8. Find the other digits in the sum

 M A D
 +  A S
 +     A   
B U L L  

Sum

Solution

In the first column, we have

3 + S + 8, which is definitely a two digits number whose unit’s digit is 7.

S must be 6.

Now, in second column, 2A + 1 = 16 + 1 = 7  ...[1 is carry forward]

In third column, M + 1 is a 2 digit number, therefore M must be 9.

Then, M + 1 = 9 + 1 = 10, 6 = 1, U = 0

Hence, S = 6, M = 9, 6 = 1 and U = 0

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Chapter 13: Playing With Numbers - Exercise [Page 413]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 13 Playing With Numbers
Exercise | Q 68. | Page 413

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