There are 32 tables in a hall. Half the tables have 2 chairs each, 5 have 3 chairs each and the rest have 4 chairs each. How many chairs in total are in the hall?
Half of 32 tables is 32*(1/2) = 
<gadget id="calculator">32*(1/2)</gadget>
<output>16</output>
16 tables
16 tables have 2 chairs each for a total of 16*2 = 
<gadget id="calculator">16*2</gadget>
<output>32</output>
32 chairs
5 tables have 3 chairs each for a total of 5*3 = 
<gadget id="calculator">5*3</gadget>
<output>15</output>
15 chairs.
There are 32-(16+5) = 
<gadget id="calculator">32-(16+5)</gadget>
<output>11</output>
11 tables left
11 tables have 4 chairs each for a total of 11*4 = 
<gadget id="calculator">11*4</gadget>
<output>44</output>
44 chairs.
The total number of chairs is 32+15+44 = 
<gadget id="calculator">32+15+44</gadget>
<output>91</output>
91 chairs.

<result>91</result>