Quantitative Aptitude - Arithmetic Ability Questions

An article was sold at Rs. 950 allowing 5% discount on the marked price. The marked price of the article is

20% discount is offered on an item. By applying a promo code the customer wins 15% cash back. What is the effective discount?

A man can row his boat at a speed of speed of 4 kmph and he finds that the time taken rowing upstream is double to that taken downstream. Find the speed of the stream (in kmph).

If sinA = x, then x is equal to

A bank offers 10% compound interest per half year. A customer deposits Rs. 3600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is.

If the simple interest on Rs. 400 for 10 years is Rs. 280, then rate of interest per annum is

If Giri's salary is 9/5 times of Hariprasad's and Shaukat's is 9/2 times of Hariprasad's, what is the ratio of Giri's salary to Shaukat's?

If √(1+tan2A) = x, then the value of x is