Question

10. A number consists of three digits. It remains unchanged if the digits in hundredth and units
place are interchanged. The sum of the three digits is 17 and the difference of the digits in
units and tens place is 4. Find the number.​

Answer 1

Answer:

773

Step-by-step explanation:

let x,y,z be the three digits

therefore,

x + y + z = 17

where, x = y

(i.e)

2y + z = 17

and y - z = 4

by elimination method

x = 7, y = 7, z = 3

Answer 2

Step-by-step explanation:

in this no. there are 3 digits

the hundredths and units no. value will be same as mentioned above :-

"It remains unchanged if the digits in hundredth and units

place are interchanged."

so let the no. be XYX

X+y+X=17

2x+y=17

(y=17/2-x)----(1)

substitution:-

X+17/2-x+X=17

-x+X get cancelled

so,

blah blah blah blah

on furthermore solving u get

-373-