Quantitative Aptitude - Arithmetic Ability Questions

If each median of an equilateral triangle has a length of 12cm. Then what will be the value of in-radius (in cm) of the equilateral triangle?

In ∆ABC, ∠B=35°, ∠C=65° and the bisector of ∠BAC meets BC in D. Then ADB is

If 3x + [1/(5x)] = 7, then what is the value of 5x/(15x2+ 15x + 1)?

If x(2x + 3) = 90 and 7y-1/2+ 2y-1/2= y1/2 (x and y are positive numbers), then what is the value of x2+ y2?

A trader sold a cycle at a loss of 10%. If the selling price had been increased by Rs. 200, there would have been a gain of 6%. The cost price of the cycle is

3/5 as a decimal fraction?

P and Q can do a project in 150 and 100 days respectively. In how many days can they complete 60% of the project if they work together?

The average of 41 consecutive odd numbers is 49. What is the largest number.