count of 90 parent surveyed , only 20% parents help their wards in their homework; the number of parents how did not helped their wards are ?
Answers
Answered by
4
Answer:
72
Step-by-step explanation:
20% -> 0.20
0.20 x 90 = 18
90-18=72
Answered by
3
Answer:
18
Step-by-step explanation:
90*20/100
=9*20/10
=9*2
=18
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