yunggin992 yunggin992

29-04-2024
Mathematics

Answered

The class teacher has posed two questions A and B to the 160 students of her class. 65 students could not answer question A, 80 students could not answer questions B and 40 students answered both the question. How many students answered only question A?

A. 55
B. 60
C. 30
D. 50

Answer :

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