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This is a SAMPLE test for Grade: 8, Subject: Math |
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Test Topic(s):
Computation and Estimation, Square and square roots, Cube |
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| Question 1:
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| Square of 12.5 will lie between _____________. |
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| Question 2:
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| Square root of 420 will lie between __________. |
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| Question 3:
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| Simplify √1125 |
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| Question 4:
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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? |
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| Question 5:
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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? |
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| Question 6:
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Calculate the value of
√3 × 3 × 5 × 5 × 5 × 5 . |
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| Question 7:
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What is the value of
√3 × 7 × √3 × 5 × √5 × 7. |
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| Question 8:
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| One person can dig a 2m × 2m × 2m hole in one hour. How long will he take to dig a 6m × 6m × 6m hole? |
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| Question 9:
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| 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? |
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| Question 10:
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| 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? |
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