NUMBER SYSTEM MCQ SET 1
1. The digit in unit’s place of the productย
49237 x 3995 x 738 x 83 x 9 is:
(a) 0
(b) 7
(c) 6
(d) 8
Answer: A
2. The unit digit in 3 x 38 x 537 x 1256 is:
(a) 4
(b) 2
(c) 6
(d) 8
Answer: D
3. Find the unit digit of the product of all the odd prime number .
(a) 0
(b) 1
(c) 2
(d) 5
Answer: D
4. Find the unit digit of the product of all the prime number .
(a) 0
(b) 1
(c) 2
(d) 5
Answer: A
5. For any natural number n , what is always the last digit of the result 6degree – 5 degree ?
(a) 1
(b) 3
(c) 7
(d) 5
Answer: A
6. Find the unit digit in given factor of (3451)^51 x (531)^43 .
(a) 6
(b) 4
(c) 1
(d) 9
Answer: C
7. The digit in unit place of the numberย
(1570)^2 + (1571)^2 + (1572)^2 + (1573)^2 is :
(a) 1
(b) 2
(c) 3
(d) 4
ย Answer: D
8. Find the last digit of 213^6?
(a) 6
(b) 3
(c) 7
(d) 9
Answer: D
9. The units digit of the expression
25 ^6251 + 36^528 + 73^54 is :
(a) 6
(b) 5
(c) 4
(d) 0
Answer: D
10. What is the unit digit in the expansion of 67^32?
(a) 1
(b) 3
(c) 7
(d) 9
Answer: A
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