For the following questions answer them individually
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
The simple interest on Rs. 2000 for 2 years at 7.5% per annum will be
If $$x=1+\sqrt2+\sqrt3$$, then the value of $$x^2-2x-4$$ is
If, $$\frac{(a+b)}{\sqrt{ab}}=\frac{2}{1}$$, then the value of (a-b) is
If ΔABC is an equilateral triangle of side 16 cm, then the length of altitude is