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| Question 1 |
| Square of 12.5 will lie between _____________. |
| A. | 169 and 225 | B. | 14 and 16 |
| C. | 144 and 169 | D. | 125 and 140 |
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| Question 2 |
| Square root of 420 will lie between __________. |
| A. | 20 and 21 | B. | 21 and 22 |
| C. | 19 and 20 | D. | 40 and 42 |
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| Question 3 |
| Simplify √1125 |
| A. | 15 × √5 | B. | 9 × √5 |
| C. | 25 × √5 | D. | 5 × √5 |
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| Question 4 |
A submarine periscope can see distance d (in miles) if the height of the periscope from the water surface is h (in feet). The relationship between d and h is d = 1.4 √h .
Calculate the distance a sailor can see if he lifts the periscope 16 feet above the water? |
| A. | 3.2 miles | B. | 22.4 miles |
| C. | 4 miles | D. | 5.6 miles |
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| Question 5 |
Velocity v (in meter/sec) of a free falling object after travelling the distance d (in meter) is defined as
v = √64 × d .
What will be the speed of an object that has travelled 100 meter after being dropped? |
| A. | 16 meter/sec | B. | 8 meter/sec |
| C. | 80 meter/sec | D. | 64 meter/sec |
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| Question 6 |
Calculate the value of
√3 × 3 × 5 × 5 × 5 × 5 . |
| A. | 250 | B. | 150 |
| C. | 75 | D. | 125 |
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| Question 7 |
What is the value of
√3 × 7 × √3 × 5 × √5 × 7. |
| A. | 10605 | B. | 105 |
| C. | 147 | D. | 49 |
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| Question 8 |
| One person can dig a 2m × 2m × 2m hole in one hour. How long will he take to dig a 6m × 6m × 6m hole? |
| A. | 12 hours | B. | 32 hours |
| C. | 36 hours | D. | 27 hours |
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| Question 9 |
| Cost of constructing marble floor is $25 per square feet. How much will it cost to lay marble on a square surface with 12 feet sides? |
| A. | $300 | B. | $6,250 |
| C. | $3,600 | D. | $2,500 |
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| Question 10 |
| The total cost of polishing a square surface is $101,430. Cost per sq feet is $230. What is the length and width of the square surface? |
| A. | 20 feet | B. | 21 feet |
| C. | 23 feet | D. | 11 feet |
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