Use app×
QUIZARD
QUIZARD
JEE MAIN 2026 Crash Course
NEET 2026 Crash Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.1k views
in Algebra by (44.8k points)
closed by

एक कमरे की लम्बाई उसकी चौड़ाई की 5/4 गुनी है। यदि कमरे की फर्श का क्षेत्रफल 20 वर्ग मी है तो उसकी लम्बाई तथा चौड़ाई ज्ञात कीजिए।

1 Answer

+1 vote
by (41.3k points)
selected by
 
Best answer

माना कमरे की चौड़ाई = x मीटर 

प्रश्नानुसार, लम्बाई = 5x/4 मीटर 

अब, फर्श का क्षेत्रफल = 20m2 

लम्बाई × चौड़ाई = 20

5x/4 \(\times\) x = 20

5x2/4 = 20

5x2 = 80

x2 = 16

x = √16 = 4

अतः, चौड़ाई = 4 मीटर 

लम्बाई = 5x/4 = 5/4 x 16

 = 20 मीटर 

Related questions

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.

...