A football team played 30 matches in one season and want 40 percentage of them the number of matches they won is a) 12
b) 10
c) 18
d) none of these ​

40% of 30 matches is 12

12

Step-by-step explanation:

(40/100)*30

=12

=12

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.