Syntel Company Numerical Ability Time and Work

15hrs of boys work=6 hrs of women's work. 3/5 of the work is done by -----boys and -----women. How much time would be the question)

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Syntel Other Question

( this was a question in the first page of the section II booklet) a cone with radius----- and height -----. a hemisphere covers the cone such that base of hemisphere meets that of the cone. then the enclose volume..( x/y+y/x=40/21(don't remember the exact value, believe this is the one) find x and y