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Diagram-Based Questions Question 1 – answer, explanation & discussion

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Question 1 Back to Exercise

The bar model shows two numbers A and B. Each blue block stands for the same amount.

Two numbers as a bar model
AB+ 14A + B = 86

What is the larger number?

  • A 36
  • B 43
  • C 50 Correct
  • D 18
Correct Answer: Option C

Remove the extra 14: 86 − 14 = 72

4 blocks = 72 → 1 block = 18

B = 2 × 18 + 14 = 50 (A = 36)

Trap: 18 is one block, not a number.

Answer: 50

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