Question
Download Solution PDFसुधीनने 8.5 किमी/तास वेगाने 4 तासात सायकल चालवली, नंतर ऑटो घेतली आणि 1.5 तास 20 किमी/तास वेगाने प्रवास केला आणि त्यानंतर y तास 4 किमी/तास वेगाने चालला. संपूर्ण प्रवासासाठी सुधीनचा एकूण सरासरी वेग 10 किमी/तास असल्यास, y चे मूल्य किती आहे?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे :
सुधीनने 8.5 किमी/तास वेगाने 4 तासात सायकल चालवली, नंतर ऑटो घेतली आणि 1.5 तास 20 किमी/तास वेगाने प्रवास केला आणि त्यानंतर y तास 4 किमी/तास वेगाने चालला.
संपूर्ण प्रवासासाठी सुधीनचा एकूण सरासरी वेग 10 किमी/तास होता.
वापरलेली संकल्पना :
सरासरी वेग = एकूण अंतर / एकूण वेळ
गणना :
एकूण पार केलेले अंतर,
⇒ 8.5 × 4 + 20 × 1.5 + 4 × y = 64 + 4y
लागलेला वेळ,
⇒ 4 + 1.5 + y = 5.5 + y
प्रश्नानुसार,
⇒ 64 + 4y / 5.5 + y = 10
⇒ 64 + 4y = 55 + 10y
⇒ 6y = 9
⇒ y = 1.5 तास
∴ योग्य उत्तर 3 हे आहे.
Last updated on Jun 13, 2025
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