SSC CHSL Tier-1 practice question
Find the sum of the first 16 terms of the arithmetic progression 22, 26, 30, ….
From a SSC CHSL Tier-1 Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (B) 832
a = 22, d = 4, n = 16. Sₙ = n/2 × [2a + (n − 1)d] = 16/2 × [44 + 15 × 4] = 16/2 × 104 = 832.
हिंदी में प्रश्न
समांतर श्रेढ़ी 22, 26, 30, … के प्रथम 16 पदों का योग ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 832
a = 22, d = 4, n = 16। Sₙ = n/2 × [2a + (n − 1)d] = 16/2 × [44 + 15 × 4] = 16/2 × 104 = 832।
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