the speed of a bus increases by 2 kmph after every one hour. if the distance travelled in the first one hour was 35 km, what was the total distance travelled in 12 hours?  Choices
A) 550	B) 500	C) 552	D) 560	E) 580
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">12 - 1</gadget>
<output>11</output>

<gadget id="calculator">11 * 2</gadget>
<output>22</output>

<gadget id="calculator">2 * 35</gadget>
<output>70</output>

<gadget id="calculator">22 + 70</gadget>
<output>92</output>

<gadget id="calculator">6 * 92</gadget>
<output>552</output>

<result>C</result>
the speed of a bus increases by 2 kmph after every one hour. if the distance travelled in the first one hour was 35 km, what was the total distance travelled in 12 hours?
multiply(divide(12, 2), add(multiply(subtract(12, const_1), 2), multiply(2, 35)))
dist 1 st hr = 35 km speed of bus by 2 kmph 2 nd hr = 37 km 3 rd hr = 39 km tot = 35 + 37 + 39 + . . . . ( 12 terms ) 12 / 2 ( 2 * 35 + ( 12 - 1 ) 2 ] = 6 * 92 = 552 answer c