The sum of the digits of a two digit is 8.if 36 is added to the number,the digits interchange their place.find the number
ammuchikku14:
Solve the pair of linear equations for x and y; 141x+93y=189; 93x+141y=45
solve it urself by elimination method dont be so lazy
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Let the no. at units place is x and tens place is y
then , given no=10y+x
also, x+y=8--------------------(1)
Now,
no. after interchange= 10x+y
Hence, a/c to question
10y+x+36=10x+y
9y-9x= -37
x-y=4------------------------(2)
Add 1 and 2
we get , x=6 y=2
Required no. = 26
then , given no=10y+x
also, x+y=8--------------------(1)
Now,
no. after interchange= 10x+y
Hence, a/c to question
10y+x+36=10x+y
9y-9x= -37
x-y=4------------------------(2)
Add 1 and 2
we get , x=6 y=2
Required no. = 26
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1
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