Algebra
Aptitude

 Back to Questions
Q.

In a factory, each day the expected number of accidents is related to the number of overtime hour by linear equation. Suppose that on one day there were 1000 overtime hours logged and 8 accidents reported and on another day there were 400 overtime hours logged and 5 accidents. What is the expected number of accidents when no overtime hours are logged?

 A.

2

 B.

3

 C.

4

 D.

5

 Hide Ans

Solution:
Option(B) is correct

Number of accidents $x=a+by$

Where $y$ is the number of overtime hour.

$8=a+1000b$ -------- (i)

$5=a+400b$ -------- (ii)

 On solving both the equations, we get:

\(a=3, b=\dfrac{1}{200}\)

For, $y=0,$ $a=x=3$


(0) Comment(s)