Question

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RAL 825 2001
EXERCISE 2
Show the method to solve these problems.
1. The first number is more than the second number by 10 and the summation
between the second numbers is 76. Find these 2 numbers.
2. Yongyut is three times the age of his son. In the next 14 years, his age will be
double of his son's age. What age are Yongyut and his son in the present.
3. Sriya's age is four times of Paradee. In the next 4 years, Sriya's age will be double
of Paradee. How old are Sriya and Paradee at present?
5. At

summatic
e will be
uble
4.
Now Wuttichai is 25 years old and he is
older than his brother. In the next 15 years
Wuttichai's age will be two times of his brother's. How old is the brother at present?
5. At present, Wiyada's age is two times of Dara. Two years ago, Wiyada's age was
three times of Dara. How old are Wiyada and Dara at present?
6. At present, Pornthip's age is two times of Panumart. Seven years ago, the summation
between their age was 16 years. How old are Pornthip and Panumart at Present?

Answer 1

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