If the price of 5 transistors and 2 pen stands is Rs. 810, then whatwill be the price of 7 transistors and 9 pen stands?
An urn contains 9 blue, 7 white and 4 black balls. If 2 balls aredrawn at random, then what is the probability that only one ball is white?
If an amount of Rs. 5,86,700 is distributed equally amongst 25persons, then how much would each person get?
What is 50% of 40% of Rs. 3,450?
A and B are two taps which can fill a tank individually in 10 minutesand 20 minutes respectively. However, there is a leakage at the bottom which can empty a filled tank in 40 minutes. If the tank is empty initially, how much time will both the taps take to fill the tank (leakage is still there) ?
What is the average age of a family of five members, whose ages are42, 49, 56, 63 and 35 years respectively?