If a2 - \(\frac{15}{a}\) = 4, then

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Home Questions 4S248JFXH3

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

If a² - \(\frac{15}{a}\) = 4, then

find a (a + 1) (a + 2) (a + 3).

Options:

120

240

360

420

Correct Answer:

360

Explanation:

a² - \(\frac{15}{a}\) = 4

Here, put a = 3, it will satisfy the above eq.

So,

a (a + 1) (a + 2) (a + 3) = 3 (3 + 1) (3 + 2) (3 + 3)

= 3 × 4 × 5 × 6

= 360