A) 5
B) 10
C) 15
D) 20
Correct Answer: C
Solution :
Given that, Number of teachers teach Mathematics, \[a+c=20\] ...(i) Number of teachers teach Physics, \[b+c=15\] and number of teachers teach both (M and P) C = 5, From Eq. (i), \[a+5=20\]\[\Rightarrow \]\[a=15\] So, only 15 teachers teaching only Mathematics.You need to login to perform this action.
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