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Mental Arithmetic 0005   Difficult

 
 
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1. What is the next number in the series 4, 17, 160, 1733 ….?
 
18,760
19,036
21,364
22,030

x 11 - 27
 

 
2. What is 232 multiplied by 11?
 
2,332
2,442
2,552
2,662
 

 
3. If 27 items are bought at a price of €2.45 each, what is the total bill?
 
66
69
70
72
 

 
4. What is the cube root of 1,331?
 
9
11
13
17
 

 
5. What is the area of a triangle whose height is 35cm and whose base is 32cm?
 
280 sq cm
360 sq cm
560 sq cm
1120 sq cm

(0.5 x 32) x 35
 

 
6. How many seconds are there in 28 minutes?
 
1,680
1,684
1,690
1,696

60 x 28
 

 
7. What is 3,844 divided by 16?
 
211
240
280
291
 

 
8. If a plane covers 375km in 45 minutes, how far will it travel in 6 hours?
 
2,450km
2,750km
3,000km
3,200km

375km in 45 mins = 500km per hour
 

 
9. If £350 interest was received at a rate of 2.8%, how much was invested?
 
£7,500
£11,000
£12,500
£14,500

£12,500 x 0.028
 

 
10. What is 27,764 subtracted from 73,351?
 
44,587
45,587
45,877
45,887
 

 
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