Out of the four options, only one is correct. Write the correct answer.

If 90% of x is 315 km, then the value of x is

Out of the four options, only one is correct. Write the correct answer.

The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually is

Out of the four options, only one is correct. Write the correct answer.

If marked price of an article is Rs 1,200 and the discount is 12% then the selling price of the article is

Out of the four options, only one is correct. Write the correct answer.

To gain 25% after allowing a discount of 10%, the shopkeeper must mark the price of the article which costs him Rs 360 as

Out of the four options, only one is correct. Write the correct answer.

If a % is the discount per cent on a marked price x, then discount is