Question

In four years' time the combined age of my three cousins and me will be 208.
What will be the combined age in seven years' time?
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Your answer​

Answer 1

Answer:

In 7 years, each of the 4 of you will have aged 7 years for a total of 28 additional years added to the total. Provided, of course, that none of the 4 cousins dies in that 7 year time.

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Answer 2

Answer:

The combined age in seven years' time is 220 yrs.

Step-by-step explanation:

Assumption,

Let the age before four years time of cousin 1 be 'a'

Let the age before four years time of cousin 2 be 'b'

Let the age before four years time of cousin 3 be 'c'

And Let my age before four years' time be 'x'.

Given,

In four years' time, the combined age of my three cousins and me will be 208.

i.e. (a + 4) + (b + 4) + (c + 4) + (x + 4) = 208....(1)

To find,
The combined age in seven years' time.

Calculation,

From equation (1)

a + b + c + x + (4 × 4) = 208

a + b + c + x = 208 - 16

a + b + c + x = 192.

Now, the combined age in seven years time is:

(a + 7) + (b + 7) + (c + 7) + (x + 7)

= (a + b + c) + (4  7)

= (192) + (28)

= 220

Therefore, the combined age in seven years' time is 220 yrs.

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