Question
Download Solution PDFएक अप्रामाणिक व्यापारी ग्राहकांना म्हणतो की तो आपला माल खरेदी किंमतीवर विकतो, परंतु तो खोटे वजन वापरतो आणि 12.5% नफा म्हणून मिळवतो. 1 किलो वजन करण्यासाठी तो किती ग्रॅम वजन वापरतो?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे:
एक अप्रामाणिक व्यापारी ग्राहकांना म्हणतो की तो आपला माल खरेदी किंमतीवर विकतो, परंतु तो खोटे वजन वापरतो आणि 12.5% नफा म्हणून मिळवतो.
वापरलेले सूत्र:
नफा % = [(त्रुटी)/(खरे मूल्य – त्रुटी)] × 100
गणना:
सूत्रानुसार,
12.5 % = [त्रुटी/(1000 – त्रुटी)] × 100
⇒ 1/8 = [त्रुटी/(1000 – त्रुटी)]
⇒ 8 त्रुटी = (1000 – त्रुटी)
⇒ 8 त्रुटी + त्रुटी = 1000
⇒ 9 त्रुटी = 1000
⇒ त्रुटी = 1000/9
तर, व्यापारी 1000 - 1000/9 देतो
⇒ [9(1000) - 1000]/9
⇒ (9000 - 1000)/9
⇒ 8000/9
⇒ 888.8 ग्रॅम
∴ तो 1 किलो वजन करण्यासाठी 888.8 ग्रॅम वजन वापरतो.
Shortcut Trick
आपल्याला 12.5% = 1/8 माहित आहे
तर, व्यापारी 9 एकक ऐवजी फक्त 8 एकक वापरतो (खोट्या वजनाने 12.5% नफा म्हणून)
तर, 9 एकक → 1000 ग्रॅम
तर, 8 एकक → 1000/9 × 8 = 888.8 ग्रॅम
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