1
Question
There are 16 teachers who can teach Thermodynamics (TD), 11 who can teach Electrical Science (ES), and 5 who can teach both TD and Engineering Mechanics (EM). There are a total of 40 teachers. 6 cannot teach any of the three subjects, i.e, EM, ES or TD. 6 can teach only ES. 4 can teach all three subjects i.e. ES, EM & TD. 4 can teach ES and TD. How many can teach both ES and EM but not TD?
There are 16 teachers who can teach Thermodynamics (TD), 11 who can teach Electrical Science (ES), and 5 who can teach both TD and Engineering Mechanics (EM). There are a total of 40 teachers. 6 cannot teach any of the three subjects, i.e, EM, ES or TD. 6 can teach only ES. 4 can teach all three subjects i.e. ES, EM & TD. 4 can teach ES and TD. How many can teach both ES and EM but not TD?
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Solution
The correct option is A 1
(a)
See set ES
0 + 4 + x + 6 = 11
x = 1
No. of teachers ES & EM but not TD is
x = 1
(a)
See set ES
0 + 4 + x + 6 = 11
x = 1
No. of teachers ES & EM but not TD is
x = 1
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2
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