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While staying in Lisbon, Portugal, you decide to visit the cities of Coimbra and Viseu. You will begin and end your trip in Lisbon. The following table shows the costs associated with traveling to and from each of these three cities. All costs are given in euros (€).


Origin and Destination

Cost (€)

Lisbon to Coimbra

70

Lisbon to Viseu

53

Coimbra to Lisbon

37

Coimbra to Viseu

72

Viseu to Lisbon

52

Viseu to Coimbra

47


Using this table, determine whether it is more cost-effective to go to Coimbra first or to go to Viseu first, and how much cheaper doing so is than the alternative.

a.

Going to Viseu first is €57 cheaper than going to Coimbra first.

b.

Going to Viseu first is €17 cheaper than going to Coimbra first.

c.

Going to Coimbra first is €57 cheaper than going to Viseu first.

d.

Going to Coimbra first is €17 cheaper than going to Viseu first

Verified Answer :

JcAlmighty

The answer is a. Going to Viseu first is €57 cheaper than going to Coimbra first.

Lisbon to Coimbra: LC = 70
Lisbon to Viseu: LV = 53
Coimbra to Lisbon: CL = 37
Coimbra to Viseu: CV = 72
Viseu to Lisbon: VL = 52
Viseu to Coimbra: VC = 47

Alternative 1. Lisbon to Coimbra to Viseu to Lisbon:
LC + CV + VL = 70 + 72 + 52 = €194

Alternative 2. Lisbon to Viseu to Coimbra to Lisbon:
LV + VC + CL = 53 + 47 + 37 = €137

Alternative 1 - Alternative 2 = €194 - €137 = 57
Thus, going to Viseu first is €57 cheaper than going to Coimbra first.

Answer:

A

Step-by-step explanation:

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