Two numbers are in the ratio 7:9 .Their sum is 272 . Find the numbera�

1.	Two numbers are in the ratio 7:9 .Their sum is 272 . Find the numbera
Answer» Answer: RATIO of the two numbers: Let: x/y = 7/9 x = (7/9) y - eq. 1 Sum of the two numbers: Let: x + y = 320 - eq. 2 SUBSTITUTE 1 to 2: (7/9)y + y = 320 y = 180 Substitute value of y to eq. 1 x = (7/9) * 180 x = 140 Therefore the two numbers are 140 and 180. But WAIT there’s more! Substitute the two numbers to any of the equations: 140 + 180 = 320 320 = 320 or (140/180) = (7/9) (7/9) = (7/9)

Two numbers are in the ratio 7:9 .Their sum is 272 . Find the numbera

Answer»

Answer:

RATIO of the two numbers:

Let: x/y = 7/9

x = (7/9) y - eq. 1

Sum of the two numbers:

Let: x + y = 320 - eq. 2

(7/9)y + y = 320

y = 180

Substitute value of y to eq. 1

x = (7/9) * 180

x = 140

Therefore the two numbers are 140 and 180.

But WAIT there’s more!

Substitute the two numbers to any of the equations:

140 + 180 = 320

320 = 320

(140/180) = (7/9)

(7/9) = (7/9)