List of top Anthropology Questions on Quantitative Aptitude

If the selling price of 20 articles is equal to the cost price of 25 articles, what is the gain percentage?
A train 150 m long is running at a speed of 54 km/hr. How much time will it take to cross a pole?
If 'A' means '+', 'B' means '–', 'C' means '×', and 'D' means '÷', then what is the value of \(18 \, C \, 14 \, A \, 6 \, B \, 16 \, D \, 4\)?
A sum of money doubles itself in 5 years at simple interest. In how many years will it become four times itself?