Question

In a number of three digits, the
digits in the units place and the
tens place are equal and the sum
of all the digits is 8. Which if these
can be the digit of unit place: (a) 4
(b)3(c)5(d) 6​

Answer 1

Answer:

Let the no. at unit place be x , tens place be y n hundredth place be z

ATQ

x=y , so we can replace x bt y

Then ,

z+y+x = 8

z+ 2y= 8

2y=8-z

Ans. 3

Explanation: z can't be 0 , so 2y should be smaller that 8 . Thus, 3 is the most suitable answer as 2×3=6, and z would be equal to 2(8-6=2). So (b) is the answer