if 4 men working 10 hours a day earn rs. 1600 per week, then 9 men working 6 hours a day will earn how much per week?  Pick:
A) rs 840
B) rs 1320
C) rs 1620
D) rs 2160
E) none of these
<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">54 / 40</gadget>
<output>27/20 = around 1.35</output>

<gadget id="calculator">(27/20) * 1_600</gadget>
<output>2_160</output>

<result>D</result>
if 4 men working 10 hours a day earn rs. 1600 per week, then 9 men working 6 hours a day will earn how much per week?
multiply(divide(multiply(9, 6), multiply(4, 10)), 1600)
"explanation : ( men 4 : 9 ) : ( hrs / day 10 : 6 ) : : 1600 : x hence 4 * 10 * x = 9 * 6 * 1600 or x = 9 * 6 * 1600 / 4 * 10 = 2160 answer : d"