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Medium Level Question 36 – answer, explanation & discussion

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Question 36 Back to Exercise

A courier moves from A to B along the streets shown, always going right or up.

City blocks
ABP

How many shortest routes are there from A to B?

  • A 56 Correct
  • B 15
  • C 28
  • D 120
Correct Answer: Option A

5 rights and 3 ups in any order

8C3 = 56

Trap: 15 multiplies 5 × 3.

Answer: 56

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