Question

Sum of two number is 2420 and substraction 1224 what is the number

Answer 1

let the two numbers be "X " And "y"

✒ X+ Y = 2420 ----(1)

✒X- Y = 1224 -------(2)

by elimination method :-

X + Y = 2420
X. - Y = 1224
______________
2y = 1196
______________

2Y = 1196

y = 1196/2

y = 598

substitute y Value in equation 1

X+ 598 = 2420

X= 2420-598

X= 1822

Answer 2

$\bf{\underline{\underline \blue{Solution:-}}}$

AnswEr:

• The required number = 1822

Given:

• Sum of two number is 2420 and substraction 1224.

Need To Find:

• The required number = ?

$\bf{\underline{\underline \blue{Explanation:-}}}$

$\textbf {Let the first numbers be x.}$

$\textbf {And second number be y. }$

$\longmapsto \sf {x + y = 2420}$

$\longmapsto \sf {x- y = 1224}$

$\dag$By Elimination Method:

$\longrightarrow \sf {x + y = 2420}$

$\longrightarrow \sf {x - y = 1224}$

$\longrightarrow \sf {2y = 1196}$

$\longrightarrow \sf {y = \dfrac{\cancel{1196}}{\cancel{2}}\:}$

$\longrightarrow \sf {y = 598}$

$\dag$Substitute Y value in equation(i):

$\longrightarrow \sf {x + 598 = 2420}$

$\longrightarrow \sf {x = 2420 - 598}$

$\longrightarrow \sf {x = 1822}$

There Fore:

• The required number is 1822.

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