Related Questions

The sum of fourth and twelfth term of an arithmetic progression is 20. What is the sum of the first fifteen terms of that arithmetic progression?
A 300
B 120
C 150
D 130
The sum of the fourth and twelfth term of an arithmetic progression is 20. what is the sum of the first 15 terms of the artihmetic progression?
A 150
B 170
C 210
D 270
How many terms or arithmetic progression (A.P.) 21, 18, 15, 12, .... must be taken to Give the sum zero ?
A 10
B 15
C 22
D 27
How many terms of Arithmetic Progression (A.P) 21, 18, 15, 12 , ..... must by taken to give the sum zero?
A 10
B 15
C 22
D 27
What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?
A 219
B 137
C 231
D 279
What is the sum of the first 12 terms of an arithmetic progression if the first term is 3 and last term is 47?
A 260
B 300
C 280
D 220
What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?
A 192
B 230
C 102
D 214
In 2007, the arithmetic mean of the annual incomes of Rahim and Karim was Taka 3800 . The arithmetic mean of the annual incomes of Karim and Ripon was Ripon and Rahim was TaKa5800. What is the arithmetic mean of the incomes of the three ?
A 3200
B 1200
C 2400
D 4800
If the nth terms of an arithmetic progression is 4n+1, then the common difference is-
A 4
B 3
C 5
D 6
Three numbers are in Arithmetic Progression (AP) whose sum is 30 and the product is 910. Then the greatest number in the AP is
A 17
B 15
C 13
D 10

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