Mathematics & Logic
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676
If 15 men can complete a work in 20 days, how many days will 10 men take to complete the same work?
Medium
Mathematics & Logic
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677
Find the L.C.M. of 12, 18, and 24.
Easy
Mathematics & Logic
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678
The value of a machine depreciates at the rate of 10% per annum. If its present value is ₹1,62,000, what was its value 2 years ago?
Hard
Mathematics & Logic
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679
The sum of three consecutive even numbers is 48. Find the smallest number.
Medium
Mathematics & Logic
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680
A dealer marks his goods 20% above the cost price and allows a discount of 10%. Find his profit percentage.
Medium
Mathematics & Logic
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681
The product of two numbers is 120 and the sum of their squares is 289. Find the sum of the two numbers.
Hard
Mathematics & Logic
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682
If the length of a rectangle is increased by 20% and the breadth is decreased by 10%, what is the percentage change in its area?
Medium
Mathematics & Logic
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683
Find the compound interest on ₹10,000 for 2 years at 10% per annum compounded annually.
Medium
Mathematics & Logic
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684
A bag contains 5 red and 7 blue balls. If two balls are drawn at random, what is the probability that both are blue?
Hard
Mathematics & Logic
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685
A train 150m long is running at a speed of 54 km/h. How much time will it take to cross a pole?
Medium
Mathematics & Logic
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686
If the ratio of the areas of two squares is 16:25, then the ratio of their perimeters is:
Medium
Mathematics & Logic
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687
If a person travels at 40 km/h, they reach their destination 10 minutes late. If they travel at 50 km/h, they reach 5 minutes early. Find the total distance.
Hard
Mathematics & Logic
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688
If 30% of a number is 120, then the number is:
Easy
Mathematics & Logic
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689
Find the average of the first five prime numbers.
Medium
Mathematics & Logic
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690
The value of $(0.5)^2$ is:
Easy
Mathematics & Logic
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