Math, asked by shafique47, 11 months ago

In a 3digit number of the middle digit is equal to the sum of the other two digits then it is a multiple of

Answers

Answered by saksham991916

itself is the answer

hope it is correct

shafique47: Ok

shafique47: Any formula to solve this type of question

saumyasuman05: there are only 3 or 4 properties you'll have to remember them

shafique47: Plz tell me the properties

shafique47: Plz

saumyasuman05: 1) Test of divisibility by 2 : a number is divisible by 2 if it ends in an even number or 0

saumyasuman05: 2) Test of divisibility by 3 : a number is divisible by 3 if the sum of its digits is divisible by 3

saumyasuman05: 3) Test of divisibility by 5 : a number is divisible by 5 if it ends in 0 or 5

saumyasuman05: 4) Test of divisibility by 9 is same as 3 the sum of digits Has to be divisible by 9 and for 6 number has to be divisible by both 2 and 3

saumyasuman05: 5) Test of divisibility by 11 : sum of digits at odd places should be equal to those at even places. eg : 15213 sum of digits at odd places = 1+2+3 = 6. even places 5+1 = 6

Answered by deshravani

Answer: The number is a multiple of 11

Step-by-step explanation:

If a number is multiplied by 11, it technically means no. X 10 + no. X 1.

for example, 11 X 11 = 110+11 = 121

Middle no. = 2 = Sum of other 2 digits = 1+1 = 2

So, by satisfying the above conditions, the no. is a multiple of 11.

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