Question

the sum and a difference of two number is 16 and 10 .find the difference of their square? ​

Answer 1

Answer:

let the first no. be x

second be y

x+y=16

x-y=10

- + -

_____

2y=6

y=3

put the value of y in any equation..

x+y=16

x+3=16

x=12

Step-by-step explanation:

hope this helps u

Answer 2

Step-by-step explanation:

Let the numbers be X and Y respectively.

Their sum

X+Y=16-------(1)

their differences

X-Y=10---------(2)

on solving these equations.

X+Y=16-------(1)

X-Y=10---------(2)

---------------------

2Y=6

Y=3

on putting the values of Y in equation (1)

we get the value of X=13

the difference of their square

=

${13}^{2} - {3}^{2} = 160$

therefore 160 is the correct answer of this question..