In a ^@3^@-digit number, the hundreds digit is ^@six \space times^@ the tens digit while the units digit is ^@seven \space times^@ the tens digit. Also, the sum of its digits is ^@14^@. Find the number.
There are a total of 16 chocolates - 4 each in the flavors of coffee, cherry, banana and grape. There are also 5 children. If each child is allowed to choose their own favorite flavor, what is the probability that all of them will get flavors of their choice?
Pump A can fill a tank in 6 minutes, while pump B can fill the same tank in 3 minutes. Both pumps are turned on together to fill the empty tank, but when tank became half full, pump B stops working and rest of the tank is filled by pump A only. How long it took to fill the tank?