UCEED 2017
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Q14.There are two discs, one with numbers and other with three cut-outs as shown in the figure 1 and are overlapped as shown in figure 2. For every second, the numbered disc rotates two numbers in anti-clockwise direction and the cut-out disc rotates one number in the clockwise direction. If the arrangement at zero second is as shown in figure 2, what will be the number inside the pentagonal cut-out at 5 seconds?
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Q16.Two discs shown below are spun randomly and they come to rest after some time. What is the probability that the sum of the two numbers in the two discs pointed by the red arrows equals seven or more?
UCEED2017Q15·nat·Medium
Figure 1 is formed by a black square inscribed in a white circle which in turn is inscribed in another black square of side 2 cm as shown. If a point is chosen at random inside figure 1, what is the probability that the point will be in the area shaded black?
Keyboards off — use the numpad, just like on exam day.
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