A five digit number is a multiple of 11 and 91 If the second digit from the left is - Maths - Real Numbers

Question

A five digit number is a multiple of 11 and 91 If the second digit
from the left is 8, then the fourth digit from the left will be
:
a) 0
b) 4
c) 8
d) 9
explain your answer

Navin Saxena · Answer

As 91= 13*7(both are prime) and also 11 so desired no has to be a
multiple of 91*11= 1001, Now to get a 5 digit no, multiply the no
1001 by a suitable digit so that we get 5 digit no and 2nd digit
from left in that no comes out to be 8 So 1st such multipke is 18 i
e 1001*18= 18018 So 4th digit from left is 1 (though no option
given there)

A five digit number is a multiple of 11 and 91. If the second digit from the left is 8, then the fourth digit from the left will be : a) 0 b) 4 c) 8 d) 9 explain your answer

A five digit number is a multiple of 11 and 91. If the second digit from the left is 8, then the fourth digit from the left will be :
a) 0
b) 4
c) 8
d) 9
explain your answer