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Quantitative Reasoning

Application of basic mathematical concepts — algebra, geometry, mensuration, statistics.

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Q1 · Quantitative Reasoning · EASY
The average of five consecutive odd numbers is 31. What is the largest of these five numbers?
Q2 · Quantitative Reasoning · MEDIUM
A rectangular park has a length that is 3 times its width. If the perimeter of the park is 240 metres, what is the area of the park in square metres?
Q3 · Quantitative Reasoning · MEDIUM
In a class of 50 students, the average marks in mathematics is 65. If the average marks of 30 students is 70, what is the average marks of the remaining 20 students?
Q4 · Quantitative Reasoning · HARD
A cylindrical water tank has a radius of 7 metres and height of 10 metres. If the tank is filled to 60% of its capacity, how many cubic metres of water does it contain? (Use π = 22/7)
Q5 · Quantitative Reasoning · MEDIUM
A train travels 120 km in 2 hours and then 180 km in 3 hours. What is its average speed for the entire journey?