WebFind the number of terms of the AP 54,51,48 ,. So that their sum is 513. Easy Solution Verified by Toppr Formula: S n= 2n[2a+(n−1)d] Given, 513= 2n[2(54)+(n−1)(−3)] 1026=n[108−3n+3] 3n 2−111n+1026=0 (n−19)(n−18)=0 ∴n=19,18 Was this answer helpful? 0 0 Similar questions If the sum of m terms of an AP is the same as the sum of its n terms. WebAnswer (1 of 5): In the above AP series it is given that Sn = 513 a = 54 d = (-3) n = ? We know Sn = n/2(2a+(n-1) d) Therefore 513 =n/2(2×54) +(n-1) (-3) 1026 = n(108-3n+3) =108n-3n^2+3n 3n^2-108n-3n+1026 = 0 Dividing above equation by 3 n^2-36n-n+342 = 0 n^2-37n+342 = 0 n^2–18n-19n...

How many terms of the series 54, 51, 48,...... be taken so that …

WebClick here👆to get an answer to your question ️ \"How many terms of the series \\( 54,51,48 \\). Whin be taken so that,\ntheir sum is 513 ? Explain the double answer\" WebHow many terms of the series 54,51,48,...... be taken so that their sum is 513? A 18 B 19 C 20 D A and B Medium Solution Verified by Toppr Correct option is D) Given series is 54,51,48,.... Sum of n terms of an A.P. is given by: S n= 2n[2a+(n−1)d] 513= 2n[2×54+(n−1)3] 1026=n[108−3n+3] 1026=111n−3n 2 3n 2−111n+1026=0 n … grant county oregon zillow

How many terms of the series 54, 51,48 ....... be taken so that, their ...

Web1 feb. 2024 · How many terms of the series 54, 51,48 ....... be taken so that, their sum is 513 ? Explain the double answer. arithmetic progression class-10 1 Answer +2 votes … WebHow many terms of the AP: 9, 17, 25, … must be taken to give a sum of 636? ... Find the number of terms of the AP: 54, 51, 48, … so that their sum is 513. 60. In an AP, the first term is –4, the last term is 29 and the sum of all its terms is … Web31 mrt. 2024 · nth term of AP = 0 The given AP = 54, 51, 48 … Formula: T n = a + (n – 1)d Where, a = first term and d = common difference Calculation: Here, a = 54 d = 51 – 54 = … chip and dale 1989