In group of 300 teachers, 60% are right-handed. Among the left-handed, 20% are musically inclined. How many are not musically inclined
A. 144
B. 96
C. 42
D. 14
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In group of 300 teachers, 60% are right-handed. Among the left-handed, 20% are musically inclined. How many are not musically inclined
A. 144
B. 96
C. 42
D. 14
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Given:
300 teachers
60% are right handed
therefore 40% are left handed.
so let's find the left-handed teachers,
left-handed teachers = 300 × 40%
left-handed teachers = 300 × 0.40
left-handed teachers = 120
Now out of 120 left-handed teachers, 20% are musically inclined.
therefore 80% are NOT musically inclined
so let's find the NOT musically inclined left-handed teachers,
not musically inclined left-handed teachers = 120 × 80%
not musically inclined left-handed teachers = 120 × 0.80
not musically inclined left-handed teachers = 96
Hence the correct answer is letter B. 96
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