WebAP = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 Given, a = 1, d = 2-1 = 1 and a n = 15 Now, by the formula we know; S n = n/2 [2a + (n − 1) × d] S 15 = 15/2 [2.1+ (15-1).1] = 15/2 [2+14] = 15/2 [16] = 15 x 8 = 120 Hence, the sum of the first 15 natural numbers is 120. Sum of AP when the Last Term is Given WebIf the 3rd , 6th and last term of a H.P. are 13, 15, 3203, then the number of terms is equal to Question If the 3rd,6th and last term of a H.P. are 31, 51, 2033, then the number of terms is equal to A 100 B 102 C 99 D 101 Medium Solution Verified by Toppr Correct option is A) If 31, 51, 2033 are 3rd,6th and last term of a H.P.
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WebJun 12, 2024 · TERMS & DETAILS: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for more … WebJan 16, 2024 · Best answer Correct option (A) 1/89 Here 5th term of the corresponding AP is a + 4d = 45 .... (1) and 11th term of the corresponding AP is a + 10d = 69 ..... (2) From Eqs. … how do you hide stories on instagram
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WebMar 23, 2024 · 5thterm = 1/6 + 4*(1/12) 5thterm = 1/2 Similarly, the 6thterm of the A.P. = 1/6 + 5*(1/12) 6thterm = 7/12 Hence, the 5thand 6thterms of the H.P. will be 2 and 12/7, respectively. Find the 50th of an H.P. if the 10th and 20th terms are 20 and 40, respectively. Web2 days ago · Amazon.com: HP 2024 ProBook 250 G9 15.6" FHD IPS Business Laptop, 12th Gen Intel 10-Core i7-1255U up to 4.7GHz, 64GB DDR4 RAM, 2TB PCIe SSD, WiFi 6, Bluetooth 5.3, Backlit KB, ... TERMS & DETAILS: More information about this protection plan is available within the “Product guides and documents” section. Simply click “User Guide” for ... WebWe're given the first term = 15, therefore we need to find the value of the term that is 99 terms after 15. The arithmetic formula shows this by a+(n-1)d where a= the first term (15), n= # of terms in the series (100) and d = the common difference (-6). phone # for car shield