At 6'o clock clock ticks 6 times. The time between first and
last ticks was 30sec. How much time it takes at 9'o clock.  Choices:
A) 60sec
B) 62sec
C) 66sec
D) 48sec
E) 76sec
At 6'0 clock, clock ticks 6 times.   So, there must be 5 intervals between clock ticks.   Time Between first and last ticks = 30sec   So, 1 interval = 30/5= 
<gadget id="calculator">30/5</gadget>
<output>6</output>
6sec   So 6'o clock 5 *6= 
<gadget id="calculator">5 *6</gadget>
<output>30</output>
30sec   7'o clock 6 *6= 
<gadget id="calculator">6 *6</gadget>
<output>36</output>
36sec   8'o clock 7 *6= 
<gadget id="calculator">7 *6</gadget>
<output>42</output>
42sec   9'o clock 8 *6= 
<gadget id="calculator">8 *6</gadget>
<output>48</output>
48sec   So, 48sec at 9'o clock.   ANSWER:48sec
<result>D</result>
At 6'o clock clock ticks 6 times. The time between first and
last ticks was 30sec. How much time it takes at 9'o clock.