A car drives a distance of d miles at 30 mph and returns at 60 mph. What is its average rate for the round trip?
A. 45 mph
B. 43 mph
C. 40 mph
D. \(2~d/30mph\)
JUIBA (Unit-G)Set-Cসাধারণ গণিতবীজগণিতীয় রাশিভগ্নাংশের যোগ, বিয়োগ, গুণ ও ভাগ (Topic Practice)JU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
Explanation:
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