# One fourth of a herd of deer has gone forest. one third of total number is grazing in field and remaining 15 are drinking water on the bank of a river. find the total number of deer

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No. of deers in the field =

Total number of deers =

3/12x + 4/12x - x = -15

7/12x - 12x/12 = -15

-5x/12 = -15

5x/12 = 15 (both minuses gets cancelled)

5x = 15 * 12

5x = 180

x = 180/5