Quantitative Aptitude - Arithmetic Ability Questions

If 5% of (P + Q) = 20% of (P – Q), then P is what percentage of Q?

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?

If x+1x ≠0 and x3+1x3 = 0, then the value of x+1x4 is :

What is the value of [1 – sin (90 – 2A)] / [1 + sin (90 + 2A)]?

Abhinav is 2 times as good a workman as Balwant and therefore is able to finish a job in 36 days less than Balwant. Working together, they can do it in

The ratio of present ages of Rasika and Shami is 7:5. After 17 years the ratio of their ages will be 12:11. What is Rasika's present age?

P, Q and R together can make a table in 40 minutes. P and Q together can make it in 60 minutes. How much time (in minutes) will R alone take to make the table?

A can do a work in 20 days and B in 10 days. If they work on it together for 5 days, then what fraction of work is left.