Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
195 views
in Mathematics by (79.1k points)
closed by
ख़राब मौसम के करण किसी हवाई जहाज ने अपनी रफ़्तार 300 किमी/घंटा कम कर दी और 1200 किमी दूर अपने गंतव्य पर 2 घंटा देरी से पहुंचा । बताइए उस उड़ान के पहुँचने की निर्धारित अवधि क्या थी ?
A. 1 hour /1 घंटा
B. 1.5 hour /1.5 घंटा
C. 2 hour /2 घंटा
D. 2.5 hour /2.5 घंटा

1 Answer

0 votes
by (88.8k points)
selected by
 
Best answer
Correct Answer - C
( c) Let the orignal speed of
Aeroplane be x km/hr
`(1200)/((x-300))-(1200)/(x)=2`
`(x-x+300)/((x-300)x)= (2)/(1200)`
image
original time
t = `(1200)/(600)`
2 hours

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.

Categories

...