Exam

Exam

1.- If we simplify the ratio 20:25, we obtain:

 a) 4:5 b) 2:3 c) 10:12 d) None of them

2.- Find out the x in this proportion:

 a) x = 12.5 b) x = 12 c) x = 13 d) x = 13.5

3.-  The magnitudes side of a rectangle and its area have  ...

 a) a direct proportionality relationship b) an inverse porportionality relationship c) no relationship d) None of them

4.- If we have 1000 kg of food for cows, the magnitudes number of cows and days the food lasts have...

 a) a direct proportionality relationship b) an inverse proportionality relationship c) no relationship d) none of them

5.- If 7 kg of sweets costs 1.75 €, how much does 3 kg cost?

 a) 1.50 € b) 0.75 € c) 1 € d) None of them

6.- If I travel at 50 Km/h, it takes 1 hour and 30 minutes to complete the trip. How long will it take if I travel at 75 km/h?

 a) 1 hour b) 1 hour and 20 minutes c)  2 hour and 15 minutes d) 2 hours and 25 minutes

7.          15% of 40 is

 a) 12 b) 24 c) 6 d) 15

8.- The equivalent fraction to 20% is

 a) 1/5 b) 20/10 c) 2/100 d) None of them

9.- The decimal number equivalent to 110% is

 a) 0.11 b) 1.1 c) 1.0 d) None of them

10.- A suit that costs 100 €, had a 20% discount last month. This month they have increased the price by 20%. Now its price is

 a) 100 € b) 110 € c) 96 € d) None of them

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