find the solution of give problem (u can also send picture) question no. 5
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let total students be X
then passed students will be 0.6x
fail students will be 0.4x
rest in the picture.
mean = (Total marks/ Total students)
then passed students will be 0.6x
fail students will be 0.4x
rest in the picture.
mean = (Total marks/ Total students)
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