The quantity of goods produced in firm is given by the equation x2+5x=6, where x is number of units produced in thousand units. If you solve this equation, what is the rational level of production?

A 6,000
B -6,000
C 5,000
D 1,000

Correct Answer: 1,000

x² + 5x - 6 = 0  or, x² + 6x - x - 6 = 0  or, x(x + 6) - 1(x + 6) = 0  or, (x + 6)(x - 1) = 0  therefore, x + 6 = 0    or,x = - 6     x - 1 = 0   or , x = 1 as,production quantity can not be negativeand the number of units produced in thousands. so, production is = 1000 unit 
Bissoy MCQ
#গণিত #Southeast Bank Ltd #Southeast Bank Ltd - Probationary Officer - 29.04.2011

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