Mathematics & Logic
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616
A dealer marks his goods 20% above the cost price and then allows a discount of 10%. What is his gain percentage?
Medium
Mathematics & Logic
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617
In a school, 60% of students are boys. If there are 120 girls, find the total number of students in the school.
Easy
Mathematics & Logic
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618
A cistern can be filled by two pipes A and B in 12 and 15 hours respectively. If both are opened together, how long will it take to fill the cistern?
Medium
Mathematics & Logic
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619
In a certain code, 'ROAD' is written as 'URDG'. How is 'SWAN' written in that code?
Medium
Mathematics & Logic
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620
A boat goes 8 km upstream and 12 km downstream in 7 hours. It can also go 10 km upstream and 15 km downstream in 8 hours and 45 minutes. What is the speed of the boat in still water?
Hard
Mathematics & Logic
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621
A vendor bought toffees at 6 for ₹1. How many for ₹1 must he sell to gain 20%?
Hard
Mathematics & Logic
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622
A 240m long train crosses a platform in 20 seconds. If its speed is 72 km/h, what is the length of the platform?
Medium
Mathematics & Logic
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623
A sum of ₹1,600 gives a simple interest of ₹252 in 2 years and 3 months. The rate of interest per annum is:
Medium
Mathematics & Logic
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624
In a 100m race, A beats B by 10m and C by 13m. In a race of 180m, B will beat C by:
Hard
Mathematics & Logic
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625
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:
Medium
Mathematics & Logic
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626
A car covers a distance of 180 km in 4 hours. What is its speed in m/s?
Medium
Mathematics & Logic
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627
A person buys an item for ₹500 and sells it for ₹600. What is his profit percentage?
Easy
Mathematics & Logic
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628
A shopkeeper offers two successive discounts of 20% and 10%. What is the equivalent single discount?
Medium
Mathematics & Logic
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629
If A:B = 2:3 and B:C = 4:5, then A:B:C is:
Easy
Mathematics & Logic
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630
The average age of 30 students is 15 years. If the teacher's age is included, the average increases by 1 year. What is the teacher's age?
Medium
Mathematics & Logic
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