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at a clothing factory 130 shirts are inspected of these 4 shirts were found to have defects . based on this info , how many shirts are expected to be defective in a batch of 4000 shirts.

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TCS Other Question

in how many 15 people seated around two tables with seating capacity of 7 and 8 people.
a. 15c7*15c8
b. 15c7*6!*!7
c 15c7*!7
d. 15c7*!6
Two tanks A and B.A fills 1ltr/1hr B fills 10,20,30 per hour.If 1/4th of tank B takes 15 hrs to fill how much it time will to take to fill complete tank?