Question
Download Solution PDFएक पेंसिल का \(\frac{1}{8}\) भाग काला है और शेष का \(\frac{1}{2}\) भाग सफेद है। यदि शेष भाग नीला है और इस नीले भाग की लंबाई 3\(\frac{1}{2}\) सेमी है, तो पेंसिल की लंबाई ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
पेंसिल का काला भाग = \(\dfrac{1 }{8} \)
पेंसिल का सफेद भाग = \(\dfrac{1 }{2} \)
शेष \(3\dfrac{1}{2}\) सेमी पेंसिल नीली है।
गणना:
माना, पेंसिल की लंबाई \(\dfrac{1 }{8} \) और \(\dfrac{1 }{2} \) का लघुत्तम समापवर्त्य होगी = 16x
काले रंग की लंबाई = \(\dfrac{1 }{8} \)× 16x = 2x
शेष = 16x - 2x = 14x
सफेद रंग की लंबाई = \(\dfrac{1}{2} \) × 14x = 7x
शेष \(3\dfrac{1}{2}\) सेमी पेंसिल नीली है।
शेष = 14x - 7x = 7x = \(\dfrac{7 }{2} \)
⇒ x = \(\dfrac{1 }{2} \)
पेंसिल की कुल लंबाई = 16x = 16 × \(\dfrac{1 }{2} \) = 8 सेमी
∴ विकल्प 3 सही उत्तर है।
Last updated on Jun 23, 2025
-> Punjab Police Constable Answer Key 2025 has been officially released on 22 June
-> Bihar Police Exam Date 2025 for Written Examination will be conducted on 16th, 20th, 23rd, 27th, 30th July and 3rd August 2025.
-> The Bihar Police City Intimation Slip for the Written Examination will be out from 20th June 2025 at csbc.bihar.gov.in.
-> A total of 17 lakhs of applications are submitted for the Constable position.
-> The application process was open till 18th March 2025.
-> The selection process includes a Written examination and PET/ PST.
-> Candidates must refer to the Bihar Police Constable Previous Year Papers and Bihar Police Constable Test Series to boost their preparation for the exam.
-> Assam Police Constable Admit Card 2025 has been released.