After selling a watch, ‘A’ found that he had made a loss of 10%. He also found that had he sold it for Rs.50 more, he would have made a profit of 10%. The actual initial loss was what percentage of the profit earned if he sold watch for a 5%?
later profit earned 5%
so required %=(10/5)×100= 200%
Aaj tak News is a very popular news channel. It telecasts the news from 6:00 AM to 8:00 PM. It telecasts 40 advertisements each of is 5 seconds and 20 advertisements about Tabaco ban each of 1 minute. What is the percentage of time devoted a day for the advertisements?
Total time for advertisement = 40 x 5 + 20 x 60 = 1400 seconds
Total duration of News = 6 AM to 8 PM = 14 hours = 14x 60 x 60 = 50400 seconds
Required % =
The ratio between length of two train P and Q is 3:4 and both running in same direction at the speed of 108km/h and 81km/h respectively. If both train cross each other in 56 sec and train Q cross a platform 20 seconds, then find in what time train P will cross a tunnel, which length is 165 meters more than length of platform?
A tank has two pipes to fill water in it. One of the pipes fills water at the rate of 100 liters per hour. The other pipe fills the tank in 6 hours. When both the pipes are working the tank is filled in 4.2 hours. What is the capacity of the tank?
Let, capacity of the tank = a liters
∴The 2nd pipe fills in 6 hours = a liters
∴The 2nd pipe fills in 1 hour = a/6 liters
According to problem,
⇒1.8a = 2520
⇒a = 2520/1.8
⇒a = 1400
∴The capacity of the tank = 1400 liters