The units digit of a 2-digit number is 2. The number is eight times the sum of the digits. Find the number.
Answers
Answered by
1
Let the tens digit of the no. be x,
Units digit of the no. = 2
No. = 10(x) + 2
= 10x + 2
Sum of digits of the no. = x+2
No. = 8(sum of the no.s digits)
10x+2 = 8(x+2)
10x+2 = 8x + 16
10x -8x = 16 - 2
2x = 14
x = 14/2
x= 7
No. = 10(7) + 2
70 + 2
72
Hope it helps you!!!!!!!!!!!!!
Units digit of the no. = 2
No. = 10(x) + 2
= 10x + 2
Sum of digits of the no. = x+2
No. = 8(sum of the no.s digits)
10x+2 = 8(x+2)
10x+2 = 8x + 16
10x -8x = 16 - 2
2x = 14
x = 14/2
x= 7
No. = 10(7) + 2
70 + 2
72
Hope it helps you!!!!!!!!!!!!!
Answered by
2
Answer:
here your answer...................
72.
Step-by-step explanation:
let the two digit number be
10x+y
here
10x is tenth digit
y is unit's digit
According to question
y=2
and
8(x+y) =(10x+y)
put y=2
8(x+2) =10x+2
8x+16=10x+2
2x=14
x=7
therefore the number is
10x+y=10*7+2=70+2=72.
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