a hall 36 m long and 15 m broad is to be paved with stones, each measuring 5 dm by 5 dm. the number of stones required is:  Choose the correct choice from the following options:  A) 180  B) 1800  C) 18  D) 2160  E) 1.8
<gadget id="calculator">36 * 15</gadget>
<output>540</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">540 / (1/4)</gadget>
<output>2_160</output>

<result>D</result>
a hall 36 m long and 15 m broad is to be paved with stones, each measuring 5 dm by 5 dm. the number of stones required is:
divide(multiply(36, 15), divide(multiply(5, 5), const_100))
"area of the hall = 3600 * 1500 area of each stone = ( 50 * 50 ) therefore , number of stones = ( 3600 * 1500 / 50 * 50 ) = 2160 answer : d"