Question

Find the smallest number of terms of the A. P. 4, 7, 10,... that must be taken for the sum of the terms to exceed 1000. ​

Answer 1

Answer:

a=4,d=3 an=n/2 (2a+(n-1)d) n/2( 2(4) +(n-1)3)

Step-by-step explanation:

n/2(8+3n-3)

n/2(5+3n)=1000

3n^2+5n=2000

n=50

Answer 2

Step-by-step explanation:

thw the correct answer is 31 term is > 1000 > 30 term