Number system worksheet-6

Multiple choice questions:

1. Which one from the following is the greatest 6 digit number with 5 in fifth places from right in numeral system?

(A) 555105                  (B) 150015                  (C) 515109                  (D) 150008

2. 900,000+50,000+4000+60=_______

(A) 954,060                (B) 95,460                  (C) 95406                    (D) 950460

3. 8,65,040=_______

(A) 8,00,000 + 60,000 + 5,000 + 40

(B) 80,0000 + 6,0000 + 50,00 + 40

(C) 800,000 + 60,000 + 5000 + 40

(D) None of these

4. Four million four hundred twenty nine thousand five hundred thirty nine _______. (international System)

(A) 4,429,539              (B) 44,295,39              (C) 44,29,539            (D) None of these.

5. If we wish to insert commas, using International number system to 56982350 . It will be:

(A) 5,698,2350          (B) 56,98,2350            (C) 56,982,350          (D) 5,69,82,350

6. 25 is factor of _______ and multiple of _______-.

(A) 125 and 5              (B) 5 and 125              (C) 5 and 5.                 (D) 125 and 125

7. If 17 is divided by 13 then the divisor is_______ , ____ is dividend, ________is remainder, _______ is quotient.

(A) 17 ,13,2, 3             (B) 13,17,3,2               (C) 13,17,2,1                (D) 13 ,17,4,1

8. _________ is the rule for order of operation.

(A) B A D MA S        (B) B O D M A S       (C) B E D M A S

9. { } will be solved prior to _________.

(A) [ ]                          (B) ( )                          (C) Addition               (D) Subtraction

10. To solve, 58 x 49 + 52, _________ will be the first operation.

(A) 58 x 49                 (B) 58 x 52                 (C) 49 x 52                  (D) 49 + 52

11. To solve, 69 + 58 –42 x 5 _______ will be solved initially.

(A) 69+58                  (B) 69-42                    (C) 58-42                     (D) 42 x 5

12. In a clock, how many times even number of hours appears?

(A) as many times odd number of hours appear

(B) More than odd number of time.

(C) Less than odd number of times

(D) None of above.

13. If you pick any odd number, then you will get _______ factors of that number.

(A) At least three                                             (C) At least 2

(C) More than three                                        (D) None of above.

14. If a sum of all the factors of the number is twice the number then it is called _______ number.

(A) prime                     (B) composite           (C) perfect                   (D) complete

15. 5 is divided by the sum of 14 and 17 and it is then subtracted from the product of 56 and 78 can be expressed in a mathematical form as:

(A) 5 ÷ 14 +17 – 56 x 78                                (B) 5 ÷14 + (17-56) x 78

(C) (56 x 78 ) – {5 ÷( 14+17) }                      (D) {5 ÷( 14+17) }- (56 x 78 )

16. If a remainder exist in division, and then we can say that _________ is not a factor of dividend.

(A) divisor                  (B) quotient                 (C) Remainder            (D) None of above.

17. ________ is the key to find multiple of 5.

(A) Ones place of the number should be 0 and 5.

(B) The sum of all the digits should be divisible by 5.

(C) Ones place should not be even number.

(D) None of above.

18. If unit digit of a number is divisible by _____,then the whole number is divisible by two .

(A) 0                            (B) 2                            (C) 1                            (D) None

19. My age is 17 and my sisters’ age is 19. My math teacher called us _______ sisters, due to our age .(number)

(A) co- prime             (B) twin –prime        (C) Both                      (D) None.

20. Two consecutive numbers are ________ co-prime.

(A) always                   (B) never                    (C) sometimes           (D) None of above.

Answer Key

1. (A)
2. (A)
3. (A)
4. (A)
5. (C)
6. (A)
7. (D)
8. (B)
9. (A)
10. (A)
11. (D)
12. (A)
13. (B)
14. (C)
15. (C)
16. (A)
17. (A)
18. (B)
19. (C)
20. (A)