What is the compound interest (in ₹) on ₹80,000 for 3 years when the rate of interest is 5%, 8% and 10% per annum for the 3 successive years, the interest being compounded annually?
A hunter fires two shots from the branch of a tree at an interval of 76 secs. A tiger separating too fast hears the two shots at an interval of 83 secs. If the velocity of the sound is 1195.2 kmph, then find the speed of the tiger?