NUMBER SYSTEM MCQ SET 2
1. What is the digit in the unit place of 3^99 ?
(a) 1
(b) 3
(c) 7
(d) 9
Answer: C
2. What is the unit place digit in the expansion of 7^73 ?
(a) 1
(b) 3
(c) 7
(d) 9
Answer: C
3. What is the last digit of the sum 8 = 9^97 + 27^9 ?
(a) 3
(b) 6
(c) 7
(d) 9
Answer: B
4. Find the unit digit of 43^43 – 28^28 .
(a) 1
(b) 2
(c) 3
(d) 4
Answer: A
5. What is the digit unit’s place of the number represented by 3^98 – 3^89 ?
(a) 3
(b) 6
(c) 7
(d) 9
Answer: B
6. Find the unit digit of the sum :
12^55/3^11 + 8^48/16^18
(a) 0
(b) 2
(c) 4
(d) 6
Answer: A
7. Let x = (633)^23 – (277)^38 + (266)^54 what is the unit digit of x?
(a) 7
(b) 6
(c) 4
(d) 8
ย Answer: C
8. If x = (164)^169 + (333)^337 – (727)^726 what is the unit digit of x?
(a) 5
(b) 7
(c) 8
(d) 9
Answer: C
9. Let x = (433)^24 – (377)^38 + (166)^54 . What is the units digit of x?
(a) 8
(b) 7
(c) 6
(d) 9
Answer: A
10. The digit in the unit’s place of
[(1)^98 + (1)^29 – (6)^100 + (5)^35 – 6^4 + 9]
(a) 1
(b) 4
(c) 5
(d) 6
Answer: B
Leave a Reply