The age of a baby will be 5 times after 20 years. What is the present age of the baby?
- 5 years
- 2 years
- 4 years
- None
Explanation
Let the present age of the baby be x.
After 20 years, the baby's age will be x + 20.
According to the problem, the baby's age after 20 years will be 5 times the present age, so we can set up the equation: x + 20 = 5x
Subtract x from both sides: 20 = 4x
Divide both sides by 4: 5 = x
So, the present age of the baby is 5 years.
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- 8x + 5 = 0
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- (x+5)(x−4)/(x−2)(x+2)
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