Question

The number A is common multiple of 9 and 7 it is between 1200 and 1300 what is the number A ?

Answer 1

Find the LCM of 9 and 7

LCM = 7 x 9 = 63

Find the first multiple of 63 in the range 1200 to 1300:

1200 ÷ 63 = 19 remainder 3

Find the number to add to make 3 a multiple of 63

63 - 3 = 60

Find the number that is a multiple fo 63 in the range of 2000 to 3000

1200 + 60 = 1260

AnswerL The number is 1260

Answer 2

The number A is 1260

Explanation:

The least common multiple of 7 and 9 is given by

$7\times9=63$

We need to determine the number A which is a common multiple of 7 and 9. It is also given that the number A is between 1200 and 1300.

The multiples of 7 between the range 1200 and 1300 is given by

1204, 1211, 1218, 1225, 1232, 1239, 1246, 1253, 1260, 1267, 1274, 1281, 1288 and 1295

The multiples of 9 between the range 1200 and 1300 is given by

1206, 1215, 1224, 1233, 1242, 1251, 1260, 1269, 1278, 1287 and 1296

It is obvious from the multiples of 7 and 9, the common multiple is 1260.

Thus, the number A is 1260.

Therefore, the number 1260 is a common multiple of 9 and 7 between the range 1200 and 1300.

Learn more:

(1) A common multiple of both 9 and 7 is A.This number is in between 1200 and 1300.what is number A ?

brainly.in/question/7295939

(2) What is the common multiple of 9 and 7 between 1200 to 1300?

brainly.in/question/14978908