SSC Stenographer Grade C & D practice question
What number should replace the question mark in the series: 7, 12, 22, 42, 82, ?
From a SSC Stenographer Grade C & D Reasoning practice set · Reasoning
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Correct answer: (B) 162
Each term = previous × 2 − 2: 7 → 12 → 22 → 42 → 82 → 82 × 2 − 2 = 162. (The differences 5, 10, 20, 40 double each time, next 80.)
हिंदी में प्रश्न
ఈ శ్రేణిలో ప్రశ్నార్థకం స్థానంలో ఏ సంఖ్య రావాలి: 7, 12, 22, 42, 82, ?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 162
ప్రతి పదం = ముందు పదం × 2 − 2. కావున 82 × 2 − 2 = 162.
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