Question
Download Solution PDFA हा 7 दिवसात 20% काम करू शकतो आणि B जर त्यांने एकट्याने काम केले असेल तर तो 7 दिवसात 25% काम करू शकतो. त्यांनी एकत्र काम केल्यास ते 7 दिवसात किती काम (टक्केवारीत) पूर्ण करू शकतात?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले आहे:
A हा 20% काम करू शकतो = 7 दिवस
B हा 25% काम करू शकतो = 7 दिवस
वापरलेले सूत्र:
एकूण काम = कार्यक्षमता × वेळ
गणना:
A हा 20% काम करू शकतो = 7 दिवस
A हा 100% काम करू शकतो = 7 × 5 = 35 दिवस
B हा 25% काम करू शकतो = 7 दिवस
B हा 100% काम करू शकतो = 7 × 4 = 28 दिवस
प्रश्नानुसार:
⇒ A × 35 = B × 28
⇒ A/B = 4/5
एकूण काम = A × 35 = 4 × 35 = 140 एकक
दोघे 7 दिवस एकत्र काम करतात = (5 + 4) × 7
⇒ 9 × 7 = 63 एकक
टक्केवारीचे काम 7 दिवसात पूर्ण = (63 × 100)/140
⇒ 9 × 5 = 45%
∴ योग्य उत्तर 45% आहे.
Last updated on Jun 13, 2025
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