Question

The sum of the digit of two numbers is 7 .if the number is decreased by 45 after reversing the digits find the numb

Answer 1

Hey!!!

@Bansal here

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Let the ten's digit be x and unit digit be y

Then ATQ,

=> x + y = 7

=> x = 7 - y -------(1)

Also

=> 10x + y - 45 = 10y + x

=> 9x - 9y = 45

=> x - y = 5

Using (1) in above equation

=> 7 - y - y = 5

=> -2y = -2

=> y = 1

Using it in (1)

=> x = 7 - 1

=> x = 6

Thus Original number = 60 + 1

=> 61

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Hope this helps ✌️

Legally Good Morning :-)