Question

multiplication of 11,12,13,14,15,16,17,18,19 until it Is 20 *20 like 19*19 , 19*18 etc please fast who does fast and write answers correctly I will mark them as brainliest and follow them thank them and rate thief answers as excellent because no one has answered my question​

Answer 1

Step-by-step explanation:

Let the missing terms of the series be x

1

and x

2

.

Thus, the sequence 20, 20, 19, 16, 17, 13, 14, 11, xv x2 is a combination of two series :

I. 20, 19, 17, 14, x

1

and II. 20, 16, 13, 11, x

2

The pattern in I is - 1, - 2, - 3,......So, missing term, x

1

= 14 - 4 = 10.

The pattern in II is - 4, - 3, - 2,......So, missing term, x

2

= 11 - 1 = 10.