Mathematics & Logic
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586
The product of two numbers is 120 and the sum of their squares is 289. The sum of the numbers is:
Medium
Mathematics & Logic
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587
A boat covers 24 km upstream and 36 km downstream in 9 hours. In how many hours can it cover 36 km upstream and 24 km downstream in 10 hours? What is the speed of the current?
Hard
Mathematics & Logic
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588
Find the missing number in the series: 2, 6, 12, 20, 30, ?
Easy
Mathematics & Logic
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589
The average of 5 numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:
Medium
Mathematics & Logic
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590
A 100m long train crosses a bridge 200m long in 12 seconds. Find the speed of the train in km/h.
Medium
Mathematics & Logic
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591
A and B together can finish a work in 12 days, while B alone can finish it in 30 days. In how many days can A alone finish the work?
Medium
Mathematics & Logic
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592
A bag contains 5 red and 7 white balls. If two balls are drawn at random, what is the probability that both are white?
Hard
Mathematics & Logic
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593
A can do a work in 10 days and B in 15 days. If they work together for 2 days and then A leaves, in how many days will B finish the remaining work?
Hard
Mathematics & Logic
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594
In a row of boys, A is 10th from the left and B is 9th from the right. If they interchange their positions, A becomes 15th from the left. How many boys are there in the row?
Hard
Mathematics & Logic
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595
A and B started a business by investing ₹20,000 and ₹30,000 respectively. If the total profit is ₹10,000, what is A's share?
Medium
Mathematics & Logic
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596
The average of seven consecutive numbers is 20. The largest of these numbers is:
Medium
Mathematics & Logic
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597
A 200m long train crosses a platform 300m long in 25 seconds. What is the speed of the train in km/h?
Medium
Mathematics & Logic
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598
If '+' means 'x', '-' means '+', 'x' means '/' and '/' means '-', then what is the value of 15 + 3 x 5 / 2 - 10?
Medium
Mathematics & Logic
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599
A sum of ₹10,000 is invested at 10% compound interest per annum for 2 years. What is the total interest earned?
Medium
Mathematics & Logic
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600
A person covers a distance of 12 km at a speed of 3 km/h. How much time does he take?
Easy
Mathematics & Logic
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