In a class test the marks scored by Ananya and Bhavesh are the two zeroes of $x^{2} - 130 x + 4125$ .
What is the AVERAGE of their two marks?

Question

In a class test the marks scored by Ananya and Bhavesh are the two zeroes of x² − 130x + 4125. What is the AVERAGE of their two marks?

Accepted Answer

65. The two marks add to -b/a = 130 , so their average is 130/2 = 65 — the individual marks never have to be found. 130 is the total, not the average; 75 and 55 are the individual marks, since x^2 - 130x + 4125 = (x - 55)(x - 75) .

In a class test the marks scored by Ananya and Bhavesh are the two zeroes of $x^{2} - 130 x + 4125$ .
What is the AVERAGE of their two marks?

Step-by-Step Solution

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More Class 10 Zeroes and Coefficients practice

In a class test the marks scored by Ananya and Bhavesh are the two zeroes of x2−130x+4125.What is the AVERAGE of their two marks?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Zeroes and Coefficients practice

In a class test the marks scored by Ananya and Bhavesh are the two zeroes of $x^{2} - 130 x + 4125$ .
What is the AVERAGE of their two marks?