CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
vivek

· started a discussion

· 1 Months ago

exp (Question: 184422.0 )

this method is very time consuming must provide short trick or short explanation

Question:

P and Q are two points observed from the top of a building 20\(\sqrt{3}\) m high. If the angles of the points are complementary and PQ = 40 m, then the distance of P from the building is–

Options:
A) 10 m
B) 20 m
C) 15 m
D) 25 m
Solution:
Ans: (b)


PB(40 + PB) = 1200

PB2 + 40PB – 1200 = 0

PB2 + 60PB – 20PB – 1200 = 0

PB(PB – 60) – 20(PB + 600) = 0

(PB – 20) (PB + 60) = 0

So, PB = 20 m

-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions