I have a two digit number the first digit is the second multiple of 4 when the two digits are - Maths - Estimation of Numbers

Question

I have a two digit number the first digit is the second multiple of
4 when the two digits are added the sum is the third multiple of 4
What is my number? Answer this with explanation

Gursheen Kaur · Accepted Answer

Dear Student,
Solution) Let the two digit number be xy
The multiples of 4 are 4, 8, 12, 16, 20,
First digit = Second multiple of 4
⇒ x = 8 (i)
Sum of the two digits = Third multiple of 4
⇒ x + y = 12 (ii)

Now, put x = 8 in (ii), we get,
⇒ 8 + y = 12
⇒ y = 12 - 8
⇒ y = 4
Hence, the number = xy = 84
Regards!

I have a two digit number the first digit is the second multiple of 4 when the two digits are added the sum is the third multiple of 4 .What is my number? Answer this with explanation.