Question
Download Solution PDFరూ.150లో, B రూ.8కి 10 పెన్నులు, రూ.5కు 10 ఎరేజర్లు, రూ.4కు కొన్ని షార్ప్నర్లను కొనుగోలు చేస్తాడు. ప్రతి వస్తువు యొక్క సగటు ధర ₹లో ఎంత?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చింది:
B 10 పెన్నులను ఒక్కొక్కటి ₹ 8కు కొనుగోలు చేస్తాడు.
రూ.5 చొప్పున 10 ఎరేజర్లు.
ఒక్కోదానికి రూ.4 చొప్పున కొన్ని షార్పెనర్లు.
ఉపయోగించిన ఫార్ములా:
సగటు = అన్ని పరిశీలనల మొత్తం/పరిశీలనల సంఖ్య
గణన:
⇒ 150 = 10 × 8 + 10 × 5 + 4 × x
⇒ 150 = 80 + 50 + 4x
⇒ 4x = 20
⇒ x = 5
సగటు = 150/(5 + 10 + 10) = 150/25 = 30/5 = 6
∴ సరైన సమాధానం 6.
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