Question

find the sum of 11+12+13+........+192 with step by step ​

Answer 1

Answer:hola

Step-by-step explanation:

Answer:

174 is the answer for the relation 10,10,11.

Step-by-step explanation:

Given number sequence is as follows:

9,9,8=144

11,11,12=192

10,10,11=?

We need first figure out the similarities in the first two sequences.

Two numbers 144, 192 are divisible by 6.

It could be guessed that two sequences follow the equation (n1 + n2 + n3 - 2) * 6

First sequence:

n1 = 9

n2 = 9

n3 = 8

So,

(9+9+8-2) * 6 = 144

Second sequence:

n1 = 11

n2 = 11

n3 = 12

So,

(11+11+12-2) * 6 = 192

Third sequence:

n1 = 10

n2 = 10

n3 = 11

So,

(10+10+11-2) * 6 = 174

Answer 2

Answer:

here 1st term is 11

common difference is12-11=1

let nth term is 192

so,

11+(n-1).1=192

11+n-1=192

n=192-10=182

sum of 182 terms is

182/2{2.11+(182-1).1}

=91(22+181)

=91×203

=18473