On sports day, students must take also part in one of the one track events 100m running and 400m relay. He must take part of any of the field events long jump, high jump and javelin throw. In how many different ways can the student take part in the given event?
Answers
Answer:
21 Ways
Step-by-step explanation:
one track events 100m running and 400m relay
this can be done in 3 ways
100 , 400 , both
field events long jump, high jump and javelin throw
this can be done in 7 ways
L , H , J , LH , LJ , HJ , LHJ
so total Different ways = 3 * 7 = 21 Ways
Below shows 21 ways :
Where 1 indicates Participating a particular game
100 m 400m Long jump High Jump Javelin
0 1 0 0 1
0 1 0 1 0
0 1 0 1 1
0 1 1 0 0
0 1 1 0 1
0 1 1 1 0
0 1 1 1 1
1 0 0 0 1
1 0 0 1 0
1 0 0 1 1
1 0 1 0 0
1 0 1 0 1
1 0 1 1 0
1 0 1 1 1
1 1 0 0 1
1 1 0 1 0
1 1 0 1 1
1 1 1 0 0
1 1 1 0 1
1 1 1 1 0
1 1 1 1 1