alleryગણ A અને B માટેના પરસ્પર છેદતા વર્તુળોમાં ફક્ત A માં 12, બંનેમાં 8 અને ફક્ત B માં 5 છે. યોગગણ શું છે?
A20
B30
C15
D25
Answer & Solution
Correct answer: D. 25
ત્રણેય પ્રદેશોનો સરવાળો કરતાં 12 + 8 + 5 = 25 સભ્યો મળે છે.
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