LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
13 views
in Aptitude by (54.3k points)
closed by
If p2 + 4p - 21 = 0 then find value of p + 5, where p > 0
1. 10
2. 3
3. 5
4. 8

1 Answer

0 votes
by (30.0k points)
selected by
 
Best answer
Correct Answer - Option 4 : 8

Given:

p2 + 4p - 21 = 0

Calculation:

p2 + 4p - 21 = 0

⇒ p2 + 7p – 3p - 21 = 0

⇒ p(p + 7) -3(p + 7) = 0

⇒ (p – 3)(p + 7) = 0

⇒ p = 3, -7

p + 5 = 3 + 5   (∵ p > 0)

∴ required answer is 8

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...