the sum of digits of a two digit number is 13. if sum of their squares is 89, find the number
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heya!
see the pic
let first number be a
second= b
according to question,
a+b=13.........[1]
a²+b²= 89.........[2]
using [1]
a=13-b
so,
if b= 5 then a= 13-5= 8
if b=8 then a= 13-8= 5
number can be 58 or 85
see the pic
let first number be a
second= b
according to question,
a+b=13.........[1]
a²+b²= 89.........[2]
using [1]
a=13-b
so,
if b= 5 then a= 13-5= 8
if b=8 then a= 13-8= 5
number can be 58 or 85
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Shubhangi4:
thanks :)
:)
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