Question

N=abc , n is a three digit number with hundreds digit a, tens digit b and units digit c. If a+b+c=20, what is the value of b? (1) the product of digits a and c is 18.

Answer 1

Answer:

a+b+c=20

if the product of a and c is 18 then we can find the value of

a and c either 6 and 3 or 9 and 2

if we put 6 and 3 on the place of a and c

then 6+b+3=20

b=20-9

b=11 while b is a single digit so it is incorrect

so we can put 2 and 9

2+b+9=20

b=20-11

b=9

Step-by-step explanation: