UCEED 2021
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Q16.A digital clock reads hours and minutes. The sum of the digits it displays at 12:00 is 3 (1+2+0+0). At 12:01 it is 4 (1+2+0+1) and so on. What is the sum of all the digits it displays from 12:00 to 12:59?
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Q18.If colour and size differences are not to be counted as unique, how many types of leaves occur only once?
UCEED2021Q17·nat·Medium109 attempts
A rhombus is inscribed in a rectangle which in turn is inscribed in a circle as shown in the figure below. P is the centre of all three shapes, PQ=QR=5 units. What is the perimeter of the rhombus?
Keyboards off — use the numpad, just like on exam day.