Question
Two cars start from a place with a speed of 30 km/hr at
an interval of 10 minutes. What is the speed of a man coming from the opposite direction towards the place if he meets the cars at an interval of 6 minutes?Solution
Distance covered in 10 minutes at 30 km/hr = 30 x (10/60) Distance covered in 6 minutes at (30 + x) km/hr = (10/60) x (30 + x) Now, Distance covered in 10 minutes at 30 km/hr = Distance covered in 6 minutes at (30 + x) km/hr ⇒ 30 x (10/60) = (6/60) x (30 + x) ⇒ 30 x 10 = 180 + 6x ⇒ 300 = 180 + 6x ⇒ 6x = 300 - 180 = 120 ⇒ x = 20 km/hr
Which new country became the 101st member of the International Solar Alliance (ISA) in 2024?
What percentage of Rs 2,000 denomination notes have been returned following the RBI’s May 2023 decision to withdraw them?
MSF enables banks to borrow funds from Reserve Bank of India (RBI) in emergency situations when their liquidity absolutely dries up. Here, MSF stands fo...
What is the full form of IFSCA?
During whose administration was the "Permanent Settlement" system introduced?
ढोलामारू रा दूहा के रचयिता है ?
After how much time can an MP be disqualified for being absent from Parliament without permission?
Recently North India’s First Biotech Park has been inaugurated at which of the following places?
Which of the following is a specialized agency of the United Nations (UN)?
Flipkart's Phonepe has tied up with __________ enabling its user link their wallets with PhonePe app?
Relevant for Exams:
