4 years ago ramus age is the square root of his fathers age
Answers
Answered by
8
Solution:
At present:
Let father's age = x year's
Ramu's age = y years
After 4 years:
Father's age = (x+4) yrs
Ramu's age = (y+4) yrs
according to the problem given,
(y+4) = √(x+4)
••••
Answered by
6
Hey Dear,
# Complete question should be -
Q. 4 years ago Ramu‘s age is the square root of his father's age. Now the age of Ramu and his father are in the ratio 1:4. Then what is Ramu’s age?
● Answer -
Ramu's age = 10 yrs
◆ Explanation -
Let x & y be present age of Ramu & his father.
Presently,
x/y = 1/4
y = 4x
4 years ago,
x - 4 = √(y - 4)
(x - 4)² = y - 4
x² - 8x + 16 = 4x - 4
x² - 12x + 20 = 0
(x - 10)(x - 2) = 0
x = 10 or x = 2
But x = 2 yrs not possible cause, Ramu age must be mote than 4.
Thus, Ramu's age is 10 yrs.
Hope this helped you.
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