एक समूह सर्वेक्षण में, 5 लोग तीनों वेब सीरीज़ ('पंचायत', 'फैमिली मैन' और 'स्पेशल ऑप्स') पसंद करते हैं, जबकि 40 लोग केवल 'फैमिली मैन' पसंद करते हैं। यदि तीनों सीरीज़ पसंद करने वाले लोगों की संख्या, केवल 'फैमिली मैन' पसंद करने वाले लोगों की संख्या का n गुना है, तो n का मान ज्ञात कीजिए।

Among 100 people, 40 people like tea, 58 people like coffee, and 26 people like both tea and coffee. Find the number of persons who like neither tea nor coffee.

In an examination of 500 candidates comprising tests in English, Hindi, and Mathematics, the failure counts in individual and combined subjects are given as follows: - Failed in English and Hindi only = 9 - Failed in English and Mathematics only = 12 - Failed in Hindi and Mathematics only = 13 - Failed in all three subjects = 5 What is the percentage of candidates who failed in at least two subjects?