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Science and Technology

Science and Technology

 
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Mental Arithmetic 0008   Mixed

 
 
Correct answers are highlighted in blue
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1. A CD holds 78 minutes' worth of music. How many 3 minute tracks can be included?
 
19
26
29
31
 

 
2. A rugby team won 60% of its 30 games, and drew one. How many did it lose?
 
9
10
11
12

(30 x 0.6) = 18 + 1 = 19 from 30 is 11
 

 
3. If steel wool costs £9 per yard, how many feet would £243 buy?
 
67
71
76
81

243 divided by (9 divided by 3)
 

 
4. How many months of the year have less than 31 days?
 
3
4
5
6

Feb, Apr, Jun, Sep, Nov
 

 
5. What is nine squared, added to the square root of nine?
 
30
57
84
90

81 + 3 = 84
 

 
6. How many euros would £15 buy at an exchange rate of £1 = €1.48?
 
21.4
22.2
23.6
27.7

15 x 1.48
 

 
7. What percentage is two fifths?
 
25
35
40
45
 

 
8. What is 24,624 divided by 6?
 
404
4004
4014
4104
 

 
9. What is 9,342 subtracted from 17831?
 
7699
8039
8399
8489
 

 
10. What is one third of 102?
 
34
35
36
37
 

 
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