Mathematics & Logic
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631
Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. If both pipes are opened together, how much time will they take to fill the tank?
Medium
Mathematics & Logic
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632
A dealer marks his goods 20% above the cost price and allows a discount of 10%. His gain percentage is:
Medium
Mathematics & Logic
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633
A container contains 40 litres of milk. From this container, 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained in the container?
Hard
Mathematics & Logic
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634
The sum of two numbers is 40 and their difference is 4. What is the ratio of the two numbers?
Medium
Mathematics & Logic
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635
The average of first five multiples of 3 is:
Easy
Mathematics & Logic
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636
What was the original share of B, if a sum of ₹1,050 is divided among A, B and C in the ratio 2:3:5?
Easy
Mathematics & Logic
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637
A train 150 metres long is running at a speed of 54 km/h. How much time will it take to cross a platform 120 metres long?
Medium
Mathematics & Logic
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638
A shopkeeper sold an article for ₹2,500 at a profit of 25%. What was the cost price of the article?
Medium
Mathematics & Logic
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639
A sum of money doubles itself at compound interest in 15 years. In how many years will it become eight times?
Hard
Mathematics & Logic
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640
The ratio of the ages of A and B is 3:4. The sum of their ages is 28 years. What will be the ratio of their ages after 4 years?
Medium
Mathematics & Logic
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641
A man can do a piece of work in 5 days, but with the help of his son, he can do it in 3 days. In what time can the son do it alone?
Medium
Mathematics & Logic
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642
The average weight of 8 men is increased by 1.5 kg when one of the men, who weighs 65 kg, is replaced by a new man. The weight of the new man is:
Medium
Mathematics & Logic
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643
The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:
Medium
Mathematics & Logic
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644
Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both pipes are opened together, the time taken to fill the tank is:
Medium
Mathematics & Logic
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645
A, B and C start a business. A invests 3 times as much as B and B invests two-third of what C invests. At the end of the year, the total profit is ₹6,600. What is B's share?
Hard
Mathematics & Logic
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