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Chapter 6 Number Play - Part 5

If 2 A B + A B 1 = B 1 8, find A and B.

Type: MCQ • Marks: 1
If 2 A B + A B 1 = B 1 8, find A and B.
Options
A. A = 4, B = 7
B. A = 2, B = 6
C. A = 5, B = 8
D. A = 3, B = 7
Explanation
Units: B + 1 = 8 => B = 7. Tens: A + B = A + 7 = 11 => A = 4? Wait, if B=7, 2A7 + A71 = 718. Units: 7+1=8. Tens: A+7=11 => A=4. Hundreds: 2+4+1(carry)=7. Matches B=7! So A=4, B=7.
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Class 7th Ganita Prakash 1

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