If p = 8.15, q = 9.06 and r = -17.21, th

CUET Preparation Today

Start Free Mocks

Home Questions EN7JAJURZC

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

If p = 8.15, q = 9.06 and r = -17.21, then the value of $p^3 +q^3 +r^3 -3pqr $ is :

Options:

-3.81

-.5.62

4.75

Correct Answer:

Explanation:

p = 8.15, q = 9.06 and r = -17.21

Here we can see p + q = r

8.15 + 9.06 -17.21 = 0

If a + b + c = 0 then

$p^3 +q^3 +r^3 -3pqr$ = 0 always.