Question

The ratio of two number are3:7and their sum is 90.Find the number

Answer 1

Step-by-step explanation:

Let the no. be 3x and 7x.

A/Q,

3x + 7x = 90

10x = 90

x = 9

then the no. are 27 and 63.

Here you go buddy. Best of Luck

Answer 2

Given:-

• Ratio of the numbers = 3:7
• Total sum = 90

To Find: The required numbers.

Let the common b/w the two numbers be = k

Thus,

• First number = 3k
• Second one = 7k

According to the Question:-

3k + 7k = 90

→ 10k = 90

→ 10(k) = 10(9)

→ k = 9

Required Answer:-

• First number = 3(9) = 27
• Second one = 7(9) = 63

Verification:-

LHS:-

3k + 7k

= 10k

= 10(9)

= 90

RHS:-

90

Thus, LHS = RHS.