Quantitative Aptitude - Arithmetic Ability Questions

If the radius of the cylinder is increased by 25%, then by how much percent the height must be reduced, so that the volume of the cylinder remains same?

Find the fourth proportional to 2, 3, 6.

A can finish a work in 18 days and B in 36 days. If they work on it together for 9 days, then what percent of work is left?

The average of four consecutive odd numbers is 40. What is the largest number?

An item is sold at two successive gains of 30% and 20%. If the final selling price is Rs 31200, then what is the cost price (in Rs)?

A train leaves Delhi at 10 a.m. and reaches Jaipur at 4 p.m. on same day. Another train leaves Jaipur at 12 p.m. and reaches Delhi at 5 p.m. on same day. What is the time of day (approximately) when the two trains will meet?

A wholesaler sells a watch to a retailer at a profit of 25% and the retailer sells it to a customer at a loss of 12%. If the customer pays Rs 1045, what had it cost the wholesaler?

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find two numbers.