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In a certain village,a cottage industry produces a certain number of pottery articles in a day on a hand operated machine.if number of articles produced in a day equals to 7x+5 and x2-25x-150=0 where x represents the number of articles. 1)find the number of articles produced in a day. 2)ramu a resident of that village promotes the use of hand operated machines.justify his act.
x2 - 25x - 150 = 0 implies (x - 30 )(x + 5) = 0
ie , x = 30 or -5
Since number is positive, x = 30.
Number of articles produced in a day = 30.


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