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Phổ biến Word Problems >

felicia's age is 0.25 of Joe's. in 20 years, joe's age will be 1.5 times of felicia's. calculate each girl's present age

Lời Giải

f e l i c i a^{'} s a g e i s 0.25 o f J o e^{'} s . in 20 ye a rs, j o e^{'} s a g e w i ll b e 1.5 t im es o f f e l i c i a^{'} s . c a l c u l a t e e a c h g i r l^{'} s p rese n t a g e

Lời Giải

Joe^{'} s age is : 16

Felicia^{'} s age is : 4

Các bước giải pháp

Translate the problem into an equation:

x + 20 = 1.5 (0.25 x + 20)

Giải

x, x + 20 = 1.5 (0.25 x + 20) : x = 16

Tìm age

Joe^{'} s age is : 16

Felicia^{'} s age is : 4

Ví dụ phổ biến

5 less than a number is 15 Emma is five years older than Joe. The sum of Emma and Joe's age is 140 How old is Emma and how old is Joe If the radius of a circle is 15 m, what is its chu vi?5 less than a number is 10 The bán kính of a circle is 6 cm. Find its area