Question
Download Solution PDFकुछ छात्र एक पंक्ति में बैठे हैं जिसमें X बाएँ छोर से सत्रवें स्थान पर है और Y दाएँ छोर से चौदहवें स्थान पर है। यदि वे परस्पर अपने स्थान बदल लेते हैं, तब X बाएँ छोर से सातवें स्थान पर है। पंक्ति में कितने छात्र हैं?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFX और Y के स्थान को सीधी रेखा के रूप में दर्शाते हैं,
अब ये अपने स्थान बदलते हैं और X बाएँ छोर से सातवें स्थान पर आ जाता है।
अब हम देख सकते हैं कि X बाएँ छोर से सातवें स्थान पर है और दाएँ छोर से चौदहवें स्थान पर है।
इस प्रकार, इस पंक्ति में कुल लड़के = 7 + 14 – 1 = 20
Last updated on Jun 11, 2025
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