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شائع Word Problems >

Andy is now 25 years older than his brother, Bob. In 15 years Andys age will be twice Bobs age then. How old are Andy and Bob now?

الحلّ

A n d y i s n o w 25 ye a rs o l d er t han hi s b ro t h er, B o b . I n 15 ye a rs A n d ys a g e w i ll b e tw i ce B o b s a g e t h e n . Ho w o l d a re A n d y an d B o b n o w ?

الحلّ

Andy^{'} s age is : 35

Bob^{'} s age is : 10

خطوات الحلّ

Translate the problem into an equation:

x + 15 = 2 (x - 25 + 15)

x + 15 = 2 (x - 25 + 15), x

حلّ لـ:

x = 35

age جد

Andy^{'} s age is : 35

Bob^{'} s age is : 10

أمثلة شائعة

Michael is 4 times as old as Brandon and is also 27 years older than Brandon. How old is Michael?Tanya is 28 years older than Marcus. In 6 years, Tanya will be three times as old as Marcus. How old is Tanya now?Sarah is 12 years old. Sarah is 3 times as old as George. How old is George?George is twice as old as Jack. Jack is twice as old as Alex. The sum of their ages is 147 Kwabena's age is twice Araba's age. The sum of their ages is 18 ,