Who was the first lady Governor of an Indian State?

Which of the following is an application protocol?

A clock gains 15 minutes per day. If it is set right at 12 noon, the time it shows at 4 AM is

A home theatre set is Rs. 4950. If two successive discounts of 20% and 15% are given, then its selling price is

If 15% of x is three times of 10% of y, then x:y = 

A bookseller bought 500 text books for  20,000. He wanted to sell them at a profit so that he get 50 books free. At what profit percent should he sell them?

20% of a man's salary is paid as rent, 60% are his living expenses and 10% are his savings. If he spends remaining  30 on the education of his children, find his salary

A gun is fired at a distance of 6.64 km away from Ram. He hears the sound 20 seconds later. Then the speed of sound is