Mathematics · Arithmetic Progression
एक समांतर श्रेणी (arithmetic progression) में, 71वाँ पद 491 है और सार्व अंतर (common difference) 5 है। श्रेणी का पहला पद ज्ञात कीजिए।
- 1144
- 2143
- 3141✓
- 4142
सही उत्तर देखें
141
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