Ans
THE ANSWER IS 68 CHIPS
Explanation:
Given the rate of chips per hour,
, where (0 ≤ t ≤ 6)
We have to calculate the chip tested between 11:00 a.m to 3:00p.m.
Assume t = 0 for 9:00 a.m (given in the question)
So from above we came put the value of t = 2 ,for 11:00 a.m and t = 6 for 3:00 p.m .
Now integrating the equation ,

By solving ,
[
] where t varies from t = 2 to t = 6;
substituting the value of t, we get the value of integration as 68
∴ 68 is the answer.