Basic Arithmetic — Test 1
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Question 1
A sum doubles itself in 8 years at simple interest. The rate of interest per annum is:
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Question 2
If the price of sugar increases by 25%, by what percent must a family reduce consumption so that expenditure remains unchanged?
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Question 3
Two successive discounts of 20% and 10% are equivalent to a single discount of:
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Question 4
A can complete a job in 12 days and B in 18 days. Working together they finish it in:
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Question 5
The average of the first 50 even natural numbers is:
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Question 6
Compound interest on Rs. 10,000 at 10% per annum for 2 years (compounded annually) is:
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Question 7
A train 150 m long running at 54 km/h will cross a pole in:
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Question 8
If A:B = 2:3 and B:C = 4:5, then A:B:C is:
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Question 9
An article sold for Rs. 600 at a profit of 20%. Its cost price is:
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Question 10
A number is increased by 20% and then decreased by 20%. The net change is:
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