DIRECTIONS : In Question Nos. 96 to 100, a part of the sentence is The first term of an Arithmetic Progression is 22 and the last term is –11. If the sum is 66, the number of terms in the sequence ar…

Question

DIRECTIONS : In Question Nos. 96 to 100, a part of the sentence is The first term of an Arithmetic Progression is 22 and the last term is –11. If the sum is 66, the number of terms in the sequence are :

PYQPulse · Accepted Answer

12

PYQPulse · Answer

Explanation: n ( ) = + l s a 2 n n ( ) = - = ´ 66 22 11 11 2 2 n = 12 9 a 3 3 3 2 2 2 ´ = a a 6

DIRECTIONS : In Question Nos. 96 to 100, a part of the sentence is The first term of an Arithmetic Progression is 22 and the last term is –11. If the sum is 66, the number of terms in the sequence are :

Answer: B. 12

Explanation