Question

Three numbers are in the ratio 3 : 4 : 5. The difference between smallest and second smallest number is 4. What is the greatest number? *

Answer 1

Answer:

20

Step-by-step explanation:

let the numbers be 3x , 4x , 5x

smallest number is 3x

second smallest number is 4x

difference is 4

4x - 3x = 4

x = 4  

3x = 12 , 4x = 16 , 5x = 20

Answer 2

ratio between the numbers = 3:4:5

the numbers are 3x,4x, 5x

4x-3x = 4

x = 4

so the numbers are,

3x = 3×4 = 12

4x = 4×4 = 16

5x = 5×4 = 20

hope it helps...