Hani said she would do 3 more situps per minute than Diana would. Diana then did 40 situps at a rate of 4 situps per minute. Calculate the total number of situps they did together.
Since Diana did 40 situps at a rate of 4 situps/minute, she did situps for 40 / 4 = 
<gadget id="calculator">40/4</gadget>
<output>10</output>
10 minutes.
Hani had to do 3 + 4 = 
<gadget id="calculator">3+4</gadget>
<output>7</output>
7 situps per minute if Diana did 4 situps per minute.
So over the 10 minutes Hani did 7*10 = 
<gadget id="calculator">7*10</gadget>
<output>70</output>
70 situps.
Together, the total number of situps they did is 70+40 = 
<gadget id="calculator">70+40</gadget>
<output>110</output>
110.

<result>110</result>