22-12-2019
Mathematics

contestada

27. A farmer divides his herd of cows among his
four sons so that first son gets one half of the
berd, the second son one-fourth, the third son
one fifth and the fourth son 7 cows. the total
number of cows in the herd is:

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22-12-2019

Answer:

140 cows.

Step-by-step explanation:

Let the number of cows in the herd be x. Then:

x - 1/2x - 1/4x - 1/5 x = 7

The LCD of 2, 4 and 5 is 20 so we have

20x/20 - 10x/20 - 5x/20 - 4x/20 = 7

20x/20 - 19x/20 = 7

x /20 = 7

x = 7*20

x = 140 cows.

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12-02-2020

Answer:

140 cows

Step-by-step explanation:

Answer Link

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