CUET Preparation Today
CUET
General Test
Quantitative Reasoning
Permutation
19th term of the A.P.: 10, 7, 4, ... is
-47
-44
-10
-35
10, 7, 4...
First term = a =10
Common difference = d = 7- 10 = 4-7 = -3
n = 19 {because, we need to find 19th term}
an = a+ (n−1) d
a19 = 10 + (19−1) (−3) = 10 − 54 = −44