a worker is paid a regular rate of rs. 20 for completing a survey. the worker completes 100 surveys per week. for any survey involving the use of her cellphone, she is paid at a rate of that is 10 % higher than her regular rate. if she completed 70 surveys involving the use of her cellphone, how much did she get that week? Pick:
A) 2140
B) 1140
C) 550
D) 650
E) 750
<gadget id="calculator">20 * 100</gadget>
<output>2_000</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">20 * (1/10)</gadget>
<output>2</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<gadget id="calculator">2_000 + 140</gadget>
<output>2_140</output>

<result>A</result>
a worker is paid a regular rate of rs. 20 for completing a survey. the worker completes 100 surveys per week. for any survey involving the use of her cellphone, she is paid at a rate of that is 10 % higher than her regular rate. if she completed 70 surveys involving the use of her cellphone, how much did she get that week?
add(multiply(20, 100), multiply(70, multiply(20, divide(10, const_100))))
amount earned using her cell phone = 70 * 22 = 1540 earned for remaining surveys = 30 * 20 = 600 total earning = 2140 answer : a