Quiz-2

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Question 1

Time: 00:00:00
What is the unit digit of 1 +9 +9^2 + 9^3 + .... 9^2773 ?

3

3

5

5

8

8

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Question 2

Time: 00:00:00
A 2 digit number is divided by the sum of digits then it gives square root of the number. Find the 2 digit number.

81

81

65

65

78

78

91

91

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["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]