X आणि Y या दोन गाड्या A ते B ते अनुक्रमे 80 किमी / ता आणि 90 किमी / तासाच्या वेगाने प्रवास करतात. जर प्रवासात X हा Y पेक्षा एक तास जास्त घेतो तर A आणि B मधील अंतर _____ आहे.

  1. 360 किमी
  2. 720 किमी
  3. 540 किमी
  4. 630 किमी

Answer (Detailed Solution Below)

Option 2 : 720 किमी
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दिल्याप्रमाणे

X आणि Y या दोन गाड्या A ते B ते अनुक्रमे 80 किमी / ता आणि 90 किमी / तासाच्या वेगाने प्रवास करतात.

सुत्र:

गति = अंतर / वेळ

गणना:

समजा अंतर x किमी आहे

प्रश्नानुसार

x/80 – x/90 = 1

⇒ (9x – 8x)/720 = 1

⇒ x = 720 किमी

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