Question

2.
If 2791 A, is divisible by 9, supply the missing digit in place of ‘A’,
Writo come numbers which are divisible by 2 3 5 9 and 10 also​

Answer 1

Answer:

Divisibility by 9 is when some of digits is a multiple of 9

2+7+9+1+A=kx9 where k is some constant

19+A=27 as A should be less than 10

A =8

Answer 2

Step-by-step explanation:

For 9

2+7+9+1+A=27(as we can take multiple of 9)

19+A=27

A=27-19

A=8

For 2

A=2 ( we can put even number or 0)

For 3

2+7+9+1+A=24( as we can take multiple of 3)

19+A=24

A=24-19

A=5

For 5

A=5 ( we can put 5 or 0 )

For 10

A=0 ( we can put 0)

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