Test: Percentages II - Challenging

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Question 1:   The girl ate three apples out of four. What is percentage of eaten apples?
75%
30%
40%
70%
Question 2:   The length of the rectangular plot is 200meters and the width is 20% of the length. 25% of this plot was ploughed. How many hectares was not ploughed?
0.6ha
0.06ha
6ha
60ha
Question 3:   Find sum of 15% of 15 and 34% of 16
7.69
769
76.9
9.67
Question 4:   Find 12% of a sum of 1.6+5.1
8.4
0.84
840
84
Question 5:   The side of one square is 6cm and is 15% of the side of another square. Find the perimeter of the larger square.
60cm
160cm
100cm
16cm
Question 6:   As a result of the machine's improvement, the cutting speed increased from 24m/min to 27m/min . How much did productivity increase?
1.25%
125%
12.5%
25%
Question 7:   One of the adjacent angles is 25% of the other. Find these angles
155 0 , 25 0
100 0 , 80 0
140 0 , 30 0
144 0 , 36 0
Question 8:   A cubic shaped tank with a 1m edge is filled with water by 67%. Find a volume of water in the tank.
1 m 3
67 m 3
0.67 m 3
6.7 m 3
Question 9:   From milk it is possible to get 6.3% of Parmigiano cheese. How much milk do you need to get 8kg of cheese?
12.6kg
100kg
126kg
126 62 63 kg
Question 10:   Find 27% of 6 1 4 ×8+3 2 3 :( -5.5 )
13.23
-13.23
1323
132.3