A, B and C are three places such that there are three different roads from A to B, four different roads from B to C and three different roads from A to C. In how many different ways can one travel from A to C using these roads?
10
13
15
36
Number of ways to go directly from A to C = 3. Number of ways to go from A to B = 3, and Number of ways to go from B to C = 4. Therefore, Number of ways to go from A to C, via B = 3 × 4 = 12 So, total number of ways to go from A to C = 3 + 12 = 15
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy