A car passes Dhaka at 9:55 am and Gazipur at 10:15 am. Gazipur is 30 miles from Dhaka. What is the average speed of the car in miles per hour?
10
30
90
120
None of these
Description (বিবরণ) :
প্রশ্ন: A car passes Dhaka at 9:55 am and Gazipur at 10:15 am. Gazipur is 30 miles from Dhaka. What is the average speed of the car in miles per hour?
ব্যাখ্যা:
Time spent = 9:55am to 10:15am = 20 minutes = 1/3 hours.
Average speed = 30 / (1/3) = 90 miles per hour
