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Q.

Set up an equation in the following case:
Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age. Take Laxmi’s age to be y years.

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a

3y + 4 = 49

b

3y + 5 = 28

c

3y + 4 = 30

d

2y + 5 = 42

answer is A.

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Detailed Solution

Given a statement, Laxmi's father is 49 years old. He is 4 years older than three times Laxmi’s age.
Let us assume the age of Laxmi = y years
Now, Laxmi’s father is 4 years older than 3 times Laxmi’s age.
Therefore, the age of Laxmi’s father is = 3y + 4.
But it is given that the age of Laxmi’s father is 49 years, equating both.
The equation is, 3y + 4 = 49.
Hence, option 1 is correct.

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