Three numbers A. B and C are in the ratio of 12:15: 25. If sum of these numbers is 312, find the ratio between the difference of B and A and the difference of C and B.

The ratio of difference between B and A and the difference between C and B is 3 : 10

Step-by-step explanation:

Three numbers A, B and C are in the ratio of 12: 15 : 25

Let the rational between the numbers be x. Hence the three numbers are :

A is 12x, B is 15x and C is 25x.

Sum of these numbers is 312,

12x + 15x + 25x = 312

52x = 312

x = 6

The rational is 6. Thus the three numbers are:

A = 12x = 12 × 6= 72

B = 15x = 15 × 6 = 90

C = 25x = 25 × 6 = 150

Ratio between the difference of B and A and the difference of C and B to be calculated

Difference between B - A = 90 - 72 = 18

Difference between C - B = 150 - 90 = 60

Thus the ratio of difference between B and A and the difference between C and B is 18 : 60 or 3 : 10

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

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step-by-step explanation: