SSC CGL Tier-1 practice question
What should come in place of the question mark (?) in the given series? 305 251 206 170 143 ?
From a SSC CGL Tier-1 General Awareness practice set · General Awareness
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Correct answer: (B) 125
Differences: 251-305=-54, 206-251=-45, 170-206=-36, 143-170=-27 (each time the gap decreases by 9). Next difference = -18, so next term = 143-18 = 125.
हिंदी में प्रश्न
दी गई श्रृंखला में प्रश्न चिह्न (?) के स्थान पर क्या आना चाहिए? 305 251 206 170 143 ?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 125
अंतर: 251-305=-54, 206-251=-45, 170-206=-36, 143-170=-27 (प्रत्येक बार अंतर 9 से घटता है)। अगला अंतर = -18, अतः अगला पद = 143-18 = 125।
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