Quantitative Aptitude - Arithmetic Ability Questions

If cot A = [sin B/(1 – cos B)], then what is the value of cot 2A?

A man bought 500 metres of electronic wire at 50 paise per metre. He sold 50% of it at a profit of 5%. At what percent should he sell the remainder so as to gain 10% on the whole transaction?

Excluding stoppages, the speed of a train is 120 kmph and including stoppages, it is 50 kmph. For how many minutes does the train stop per hour?

(secA ­- tanA)/(cosecA + cotA) is equal to

Choose the word is least like the other words in the group

Solve the following : -1/4 { -45 - (-96) / (-32)} = ?

The difference of compound interest and simple interest for 3 years and for 2 years are in ratio 23 : 7 respectively. What is rate of interest per annum (in %)?

A man spend 7.5% of his money and after spending 75% of the remaining, he had Rs. 370 left. How much money did he have