Question

13) Two numbers are in the ratio 5:6. If 8 is subtracted from each of the
numbers, the ratio becomes 4:5. Then the numbers are :​

Answer 1

Answer:

Let the two no be x and y

therefore x / y = 5 / 6

6 * x = 5 * y

6 * x - 5 * y = 0             * 5

    30 * x -     25 * y = 0 ..................(i)

also (x - 8)/(y - 8) = 4 / 5

5 * x - 40 = 4 * y - 32

5 * x - 4 * y - 8 = 0                 *6

30 * x - 24 * y - 48 = 0 .....................(ii)

subtracting  (i) from (ii)

y - 48 = 0

y = 48

putting y = 48 in x/y = 5/6

x/48 = 5/6

x = 5 * 48 / 6

x = 5 * 8

x = 40

therefore the two numbers are 40 and 48

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