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Master Sum of n terms in AP - Intermediate-Advanced Level Problems Sum of n terms in AP INTERMEDIATE ADVANCED

Excel in competitive exams with this self assessment worksheet on Sum of n terms in AP. Worksheet 7 of 10 contains 20 intermediate-advanced-level problems. Target your accuracy improvement skills while practicing sum of n terms in ap shortcut methods, sum of n terms in ap bank exam questions, and sum of n terms in ap ssc cgl.

📝 Worksheet 7 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate Advanced level

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Worksheet 7 of 10 (66% complete)

Question 1

Find the sum of first 9 terms of the AP: First term=5, common difference=2.
S_n = n/2 [2a + (n-1)d] = 9/2*[2*5+(8)*2] = 117.0

Question 2

Find the sum of first 20 terms of the AP: First term=12, common difference=8.
S_n = n/2 [2a + (n-1)d] = 20/2*[2*12+(19)*8] = 1760.0

Question 3

Find the sum of first 7 terms of the AP: First term=6, common difference=4.
S_n = n/2 [2a + (n-1)d] = 7/2*[2*6+(6)*4] = 126.0

Question 4

Find the sum of first 13 terms of the AP: First term=5, common difference=6.
S_n = n/2 [2a + (n-1)d] = 13/2*[2*5+(12)*6] = 533.0

Question 5

Find the sum of first 9 terms of the AP: First term=5, common difference=2.
S_n = n/2 [2a + (n-1)d] = 9/2*[2*5+(8)*2] = 117.0

Question 6

Find the sum of first 15 terms of the AP: First term=3, common difference=2.
S_n = n/2 [2a + (n-1)d] = 15/2*[2*3+(14)*2] = 255.0

Question 7

Find the sum of first 20 terms of the AP: First term=12, common difference=3.
S_n = n/2 [2a + (n-1)d] = 20/2*[2*12+(19)*3] = 810.0

Question 8

Find the sum of first 14 terms of the AP: First term=12, common difference=4.
S_n = n/2 [2a + (n-1)d] = 14/2*[2*12+(13)*4] = 532.0

Question 9

Find the sum of first 15 terms of the AP: First term=6, common difference=4.
S_n = n/2 [2a + (n-1)d] = 15/2*[2*6+(14)*4] = 510.0

Question 10

Find the sum of first 18 terms of the AP: First term=8, common difference=4.
S_n = n/2 [2a + (n-1)d] = 18/2*[2*8+(17)*4] = 756.0

Question 11

Find the sum of first 20 terms of the AP: First term=5, common difference=7.
S_n = n/2 [2a + (n-1)d] = 20/2*[2*5+(19)*7] = 1430.0

Question 12

Find the sum of first 17 terms of the AP: First term=12, common difference=6.
S_n = n/2 [2a + (n-1)d] = 17/2*[2*12+(16)*6] = 1020.0

Question 13

Find the sum of first 15 terms of the AP: First term=9, common difference=3.
S_n = n/2 [2a + (n-1)d] = 15/2*[2*9+(14)*3] = 450.0

Question 14

Find the sum of first 9 terms of the AP: First term=5, common difference=7.
S_n = n/2 [2a + (n-1)d] = 9/2*[2*5+(8)*7] = 297.0

Question 15

Find the sum of first 11 terms of the AP: First term=9, common difference=6.
S_n = n/2 [2a + (n-1)d] = 11/2*[2*9+(10)*6] = 429.0

Question 16

Find the sum of first 16 terms of the AP: First term=5, common difference=7.
S_n = n/2 [2a + (n-1)d] = 16/2*[2*5+(15)*7] = 920.0

Question 17

Find the sum of first 13 terms of the AP: First term=12, common difference=2.
S_n = n/2 [2a + (n-1)d] = 13/2*[2*12+(12)*2] = 312.0

Question 18

Find the sum of first 20 terms of the AP: First term=4, common difference=7.
S_n = n/2 [2a + (n-1)d] = 20/2*[2*4+(19)*7] = 1410.0

Question 19

Find the sum of first 17 terms of the AP: First term=3, common difference=8.
S_n = n/2 [2a + (n-1)d] = 17/2*[2*3+(16)*8] = 1139.0

Question 20

Find the sum of first 8 terms of the AP: First term=11, common difference=4.
S_n = n/2 [2a + (n-1)d] = 8/2*[2*11+(7)*4] = 200.0
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