Question

what is the sum of two numbers is 21 and with the difference of 5

Answer 1

★ǫᴜᴇsᴛɪᴏɴ★

ᴛhe sum of two numbers is 21 and their difference is 5. What are the two numbers?

Answer:-

Let's assume the two numbers to be x and y

Now according to the question

x + y = 21

=> y = 21 - x

x - y = 5

=> x - ( 21 - x) = 5

=> 2x - 21 = 5

=> 2x = 5 + 21

=> 2x = 26

=> x = ${ \dfrac{ \cancel{26} {}^{ \: \: \: \: 13} }{ \cancel{2}_{ \: \: \: \: 1}}}$

=> x = 13

∴ y = 21 - x

= 21 - 13

= 8

Answer : The two numbers are 13 and 8.

@BengaliBeauty

Feel free to ask your doubts anytime

Answer 2

Answer:

let numbers be x and y.

$x + y = 21 \\ x - y = 5 \\ on \: adding \\ 2x = 26 \\ x = 13 \\ now \: 13 + y = 21 \\ y = 8$