Question

4. The sum of the two numbers is thrice their difference. If one number is 10. Find the other
number?
A) 20,5 B) 10,15 C) 12,13 D) 16,9​

Answer 1

Answer:

Let two numbers are X and Y. Y is the smaller number.

Let two numbers are X and Y. Y is the smaller number.Given,

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,(X +Y) =3*(X - Y)

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,(X +Y) =3*(X - Y)(X +10) = 3* (X -10)

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,(X +Y) =3*(X - Y)(X +10) = 3* (X -10)X - 3X = -30 - 10

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,(X +Y) =3*(X - Y)(X +10) = 3* (X -10)X - 3X = -30 - 10-2X = -40

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,(X +Y) =3*(X - Y)(X +10) = 3* (X -10)X - 3X = -30 - 10-2X = -40X = 20.

Let two numbers are X and Y. Y is the smaller number.Given,Y = 10And,According to question,(X +Y) =3*(X - Y)(X +10) = 3* (X -10)X - 3X = -30 - 10-2X = -40X = 20.So, the required number is 20

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Answer 2

Answer:

So, the correct answer of this question will be A,i.e, (20,5)

Step-by-step explanation:

According to question,

10+x=3(x-10)

10+x=3x-30

10+30=3x-x

40=2x

x=20

or

10+x=3(10-x)

10+x=30-3x

x+3x=30-10

4x=20

x=5

Hence, the value of x will be 20 or 5

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