A machine produces 240 bolts in 25 minutes. At the same rate how many bolts would be produced in 45 minutes
Answer: The correct option is A.
Step-by-step explanation: We are given a polynomial which is a sum of other 2 polynomials.
We are given the resultant polynomial which is : 
One of the polynomial which are added up is : 
Let the other polynomial be 'x'
According to the question:


Solving the like terms in above equation we get:


Hence, the correct option is A.
Y=-1/2+1
Hope this helps :)