Quantitative Aptitude - Arithmetic Ability Questions

If cos 2π/3c = x, then the value of x is

Sumit and Amit undertook a work for Rs 7200. Sumit alone can do the work in 5 days and Amit alone can do the work in 4 days. If they work together,then what will be the difference (in Rs.) in the amount they receive?

If on an item there is 12% discount on the marked price of Rs 10,000 but the item is sold at Rs 8,360 only then what additional discount (in %) did the customer get?

The difference between cost price and selling price is Rs 221. If profit percentage is 17%, then what is the selling price (in Rs)?

Find the odd words/letters/number from the given alternatives.

The value of cos220° + cos270°is

In the first 43 overs of a cricket match, the run rate was 5 runs/over. Calculate the required run rate in the remaining 7 overs to reach the target of 285 runs?

The marked price of a door is Rs 1400. It is sold at a discount of 28%. If the cost price of the door is Rs 700, then what is the profit (in Rs)?