Tell which of the given numbers
6420,7125,5030,4132 are divisible
by 2,3 and 5 without carrying
division.
Answers
Answered by
0
Step-by-step explanation:
Let A be the no. of numbers divisible by 2.
B=no. of numbers divisible by 3.
C=no. of numbers divisible by 5.
A=[
2
1000
]=500
B=[
3
1000
]=333
C=[
5
1000
]=200
A∩B=
6
1000
]=166
B∩C=[
15
1000
]=66
A∩C=[
10
1000
]=100
A∩B∩C=[
30
1000
]=33
∴∩(A∪B∪C)=500+333+200−166−66−100+33=734
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