Hourly Challenge · Maths (Quantitative Aptitude)
🕐 31 Oct 2026 · 3 PM IST
5 questions · 30 seconds each · instant explanations. For PSC, UPSC, SSC, Banking & Railway aspirants. No login needed.
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Question 1 / 5Score: 0
A train 150 m long crosses a pole in 9 seconds. What is its speed in km/h?
Explanation: Speed = 150 ÷ 9 = 50/3 m/s. Converting to km/h: 50/3 × 18/5 = 60 km/h.
Question 2 / 5Score: 0
What is the simple interest on ₹8,000 at 5% per annum for 3 years?
Explanation: SI = P × R × T ÷ 100 = 8000 × 5 × 3 ÷ 100 = ₹1,200. (₹1,261 would be the compound interest.)
Question 3 / 5Score: 0
A can finish a work in 12 days and B in 18 days. Working together, how many days will they take?
Explanation: One day's work = 1/12 + 1/18 = 3/36 + 2/36 = 5/36. Time = 36/5 = 7.2 days.
Question 4 / 5Score: 0
An article bought for ₹400 is sold for ₹460. What is the profit percentage?
Explanation: Profit = 460 − 400 = ₹60. Profit % = 60/400 × 100 = 15%.
Question 5 / 5Score: 0
The average of 5 numbers is 24. When one number is removed, the average of the rest becomes 22. Which number was removed?
Explanation: Total of 5 numbers = 5 × 24 = 120. Total of remaining 4 = 4 × 22 = 88. Removed number = 120 − 88 = 32.
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