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A teacher keeps data on student tabulated by performance and Gender of the Student. The data is on a computer disc but un fortunately some of it is lost due to technical touch . Only the following data could be recovered:

GenderAverageGoodExcellentTotal
Male--10-
Female---32
Total-30--

An expert commille was formed which decide that the following fact were self evident: Half of student's were ether excellent or good. 40% of the student were females. One-third of the male student were average.

How many student are in the both categories are male and good?

Solution

Correct Option: 2

From the worked solution: male good =481610=22=48-16-10=22. Hence 22 students are both male and good.

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