Question

Sum of the tow no. is 70 and the difference between them is50 find the number

Answer 1

Answer:

The numbers are 60 and 10

Step-by-step explanation:

Sum of two numbers = 70

Difference between them = 50

Let the two numbers be "x" and "y"

According to the question,

 x + y = 70

 x - y = 50

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

 2x = 120

   x = 120/2

   x = 60

=> x+y = 70

60 + y = 70

 y = 70 - 60

  y = 10

The two numbers are 60 and 10.

Answer 2

Correct Question :

›»› Sum of the two number is 70 and the difference between them is 50 find the number.

________________.....

Answer :

›»› The two numbers is 60 and 10.

Given :

• Sum of the two number is 70 and the difference between them is 50.

To Find :

• The number.

Solution :

Let,

The two numbers be "x" and "y"

Sum of two number is 70.

→ x + y = 70 .......(1)

Difference between them is 50.

→ x - y = 50 ........(2)

Now,

Solving equation (1) and equation (2)

→ (x + y = 70) + (x - y = 50)

→ x + x + y - y = 50 + 70

→ 2x + y - y = 50 + 70

→ 2x = 50 + 70

→ 2x = 120

→ x = 120/2

→ x = 60

Now, put the value of x in equation (2)

→ x - y = 50

→ 60 - y = 50

→ -y = 50 - 60

→ -y = -10

→ y = 10

║Hence, the two numbers is 60 and 10.║

Verification :

→ Sum of two number = 70

→ x + y = 70

→ 60 + 10 = 70

→ 70 = 70

Here, LHS = RHS

Hence Verified !