Question
Download Solution PDFदिए गए विकल्पों में से वह संख्या चुनिए जो निम्नलिखित श्रृंखला में प्रश्नवाचक चिन्ह (?) को प्रतिस्थापित कर सकती है।
5, 18, 70, 278, ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFयहाँ अनुसरित किया गया स्वरुप निम्न है:
(पिछली संख्या × 3) + (पिछली संख्या – 2) = अगली संख्या
दिया है: 5, 18, 70, 278, ?
पहली संख्या → 5
दूसरी संख्या → (5 × 3) + (5 -2) = 15 + 3 = 18
तीसरी संख्या → (18 × 3) + (18 --2) = 54 + 16 = 70
चौथी संख्या → (70 × 3) + (70 2) = 210 + 68 = 278
पांचवी संख्या → (278 × 3) + (278 -2) = 834 + 276 = 1110
अतः ''1110" सही उत्तर है।
Alternate Method यहाँ अनुसरण किया गया तर्क है:
पिछली संख्या × 4 - 2 = अगली संख्या।
5, 18, 70, 278, ?
5 × 4 - 2 = 18
18 × 4 - 2 = 70
70 × 4 - 2 = 278
278 × 4 - 2 = 1110
अत: सही उत्तर "1110" है।
Last updated on Jun 13, 2025
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