How many terms of ap 24 21 18 is 78

Author: nane

August undefined, 2024

Web20 nov. 2013 · Expert Answer a = 78, d = 71 - 78 = -7 Let n be the required no. of terms Sn = 465 [2a + (n - 1)d] = 465 n [156 + (n - 1) (-7)] = 930 7n 2 - 163n + 930 = 0 (7n - 93) (n - 10) = 0 n = or n = 10 Neglect n = as n cannot be a fraction No. of terms (n) = 10 Answered by 20 Nov, 2013, 02:39: AM Application Videos WebThe 8th term of an AP is 18 more than the second term of the AP. The third term is 7. Formula: n-th term of an AP = a + (n - 1)d, where a is the first term, n is the total number …

Sum of N terms of an AP - Formula, Examples Sum of AP Formula …

Web12 mrt. 2024 · How many terms of the AP : 24, 21, 18, . . . must be taken so that their sum is 78? Answers / Hints 1. a) 2. c) 3. d = 2ab, 590, 4. 2,6,10,14 / 14,10,6,2 OR 40 1. - 4 2. … WebHow many terms of the AP 18 16, 14, 12, …. are needed to give the sum 78? Explain the double answer. asked Jul 26, 2024 in Arithmetic Progression by Haifa ( 52.3k points) can hear water in stomach

How many terms of the AP : 24, 21, 18 .... must be taken so that …

Web4 jan. 2024 · Given : AP = 24,21.. Sn = 78 . To find : n = ? AP = 24, 21 , 18 .. So, First term of AP = (a) = 24, common difference (d) = (21 - 24) = -3. Let n no. of terms to be taken, So that sum = 78. So, sum of n terms of the AP, Sn = n/2 × [2a + (n-1)d] Substituting the given value in above formula we get, = n/2 × (2 x 24 + (n-1) × (-3) ∴ n/2 × ... Web25 nov. 2024 · How many terms of the AP: 24,21,18 must be taken so that thier sum is 78? See answer Advertisement Brainly User First term, a = 24 common difference, d = 21-24 = -3 let the number of terms to get sum 78 is n. WebClick here👆to get an answer to your question ️ 6) How many terms of the \$ A . P .43,39,35 . \$ them so that their sem in 252 ? can heartworms cause diarrhea in dogs

Howmanyterms of theAP 24,21 must be takenthat the sum is 78?

How many terms of ap 24 21 18 is 78

How many terms of the A.P. 24, 21, 18, - Shaalaa.com

WebLet's check sum of 4 terms ⇒ a 4 = a 3 + d ⇒ a 4 = 18 + (-3) = 15 ∴ S 4 = 24 + 21 + 18 + 15 = 78. By formula, a n = a + (n - 1)d ⇒ a 5 = 24 + (5 - 1) (-3) ⇒ a 5 = 24 + 4 (-3) ⇒ a 5 = … Web14 aug. 2024 · Which term of AP 13 21 29 will be 48 less than its 19th term? ... How many terms of the arithmetic progression 24 21 18 must be taken so that their sum is 78? So …

Did you know?

WebConsider the following AP: 24, 21, 18..... How many terms of this AP must be taken so that their sum is 78? [4 MARKS] Solution Formula: 1 Mark Concept: 1 Mark Application: 2 … WebEasy Solution Verified by Toppr Given, a=−6 d=− 211−(−6)= 21 Formula, S n= 2n[2a+(n−1)d] −25= 2n[2(−6)+(n−1) 21] −50=n[ 2−24+n−1] n 2−25n+100=0 (n−20)(n−5)=0 ∴n=5,20 Therefore the number of terms required is 5 or 20 Solve any question of Arithmetic Progression with:- Patterns of problems > Was this answer helpful? 0 0 Similar questions

WebWhite House press corps. The White House press corps is the group of journalists, correspondents, and members of the media usually assigned to the White House in … WebHow many terms of the A.P. 24, 21, 18, … must be taken so that the sum is 78? Explain the double answer.

Web5 mrt. 2024 · Click here 👆 to get an answer to your question ️ which terms of the AP: 21,18,15....is -78 WebHere, First term, a =3 Common difference, d=8−3= 5 an= 78 Using formula an = a+(n−1)d to find nth term of arithmetic progression, we get an= 3+(n−1)5 {we want to find value of n …

Web10 jul. 2024 · How many terms of the AP : 24, 21,18,... must be taken so that their sum is 78? class-10 arithmetic-progressions Answer 0 votes Best answer a=24 and d=21-24=-3 S n = n 2 (2a + (n − 1)d) S n = n 2 ( 2 a + ( n - 1) d) 78 = n 2 (2(24) + (n − 1)( − 3)) 78 = n 2 ( 2 ( 24) + ( n - 1) ( - 3)) 156=n (48-3n+3) n2 − 51n + 156 = 0 n 2 - 51 n + 156 = 0

WebExample: Find the sum of the first 20 terms of the arithmetic series if a 1 = 5 and a 20 = 62. Solution: Here, a 1 = 5 and a 20 = 62 and n = 20. If we have given the first term and the … can heartworms cause vomitingWebHow many terms of the a.p: 24,21,18,.must be taken so that the sum is 78? View answer. How many terms of the AP: 9,17,25 .must be taken to give a sum of 636? ... How many terms of an ap 45,39,33,.must be taken so thier sum is 180? for Class 10 2024 is part of Class 10 preparation. fit feels good recipesWeb18 jun. 2016 · The simplest arithmetic progression satisfying the given condition is the constant progression with all $45$ terms equal to $18.$ The sum of that progression is … can hear your own heartbeatWebHow many terms of the A.P. 24, 21, 18, … must be taken so that the sum is 78? Explain the double answer. Advertisement Remove all ads Solution A.P. is 24, 21, 18,... Sum = … can hear water running in wallsWeb24 + 21 + 18 + 15 = 78 — 3 A.. 24 + 21 = 45 B. 45 + 18 = 63 C. 78 - 63 = 15 63 + 15 = 78 CHECK More answers below R.N Singh Former Name R.N Singh at Educational … fitfeelsgood.com/bookWebQuestion From - NCERT Maths Class 10 Chapter 5 SOLVED EXAMPLES Question – 13 ARITHMETIC PROGRESSIONS CBSE, RBSE, UP, MP, BIHAR BOARDQUESTION … can heat affect blood pressureWebConsider the following AP24 21 18How many terms of this AP must be taken so that their sum is 78 [4 MARKS] Formula 1 MarkConcept 1 MarkApplication 2 ... Consider the … fit feels good reviews