Question

if 712a4a1 is a multiple of 9, where a is a digit , then find the value of a​

Answer 1

Answer:

18,27,36,45,54,63,72,81,90

Answer 2

Answer:

the value of a is 6 as it is the multiple of 9

Step-by-step explanation:

here,

what is the divisibility of 9?

add all the digits present in the number

thrn check it is divisible by 9 or not because it will become small then it is easy to answer

7+1+2+a+4+a+1= 15 +2a

so now find the nearest number of 15 which is divisible of 9

we can say 18

15+2a+18

2a=3

a=3/2

a=1.5

we want a whole number not a decimal number so 1.5 cannot be the answer

so now check as 27

15+2a = 27

2a=12

a=6

so here the value of a is 6.

when we add 15+2*6

15+12=27

when we divide 27/9 it will be completely divided