A Quick Revision for Brainlysss....
Solve this with explaination...
Asked by Giyanji's sister '2'
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Answer:
By using the formula
a union b = a + b - a intersection b
we have,
70 = 37 + 52 - a intersection b
70 - 89 = - a intersection b
-19 = - a intersection b
19 = a intersection b
Therefore the number of students who like both coffee and tea are 19.
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