Of the 45 families in a locality, 25 families have working mothers and 10 families have retired individuals as members to look after the children at home. Of the families, 8 have both working mothers and retired individuals as members. How many of the families have working mothers but no retired individuals as members?
A.
B. 2
C. 18
D. 17
E. None of these
সঠিক উত্তরঃ
D.
17
Explanation:
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