chris age after 20 years will be 5 times his age 5 years back. what is the present age of chris? Choose one:
A) 20
B) 25
C) 15
D) 22
E) 5
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">25 + 20</gadget>
<output>45</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">45 / 4</gadget>
<output>45/4 = around 11.25</output>

<gadget id="calculator">(45/4) - 5</gadget>
<output>25/4 = around 6.25</output>

<gadget id="calculator">(45/4) - (25/4)</gadget>
<output>5</output>

<result>E</result>
chris age after 20 years will be 5 times his age 5 years back. what is the present age of chris?
subtract(divide(add(multiply(5, 5), 20), subtract(5, const_1)), subtract(divide(add(multiply(5, 5), 20), subtract(5, const_1)), 5))
chris present age = x after 20 years = x + 20 5 years back = x - 5 x + 20 = 5 ( x - 5 ) x = 5 answer is e