# Number System Questions and answers

Topics

31). Rationalising factor of $$a - \sqrt{b}$$ is
 A). $$-a + \sqrt{b}$$ B). $$a - \sqrt{b}$$ C). $$-a - \sqrt{b}$$ D). $$a + \sqrt{b}$$
32). 297144 is divisible by
 A). 3 B). 9 C). 6 D). All of these
33). The number 3, 116 and 365 is divisible by
 A). 5 B). 7 C). Both a and b D). None of these
34). 1265 is divisible by
 A). 2 B). 3 C). 10 D). 11
35). What is the least value assigned to # so that the number 63576#2 is divisible by 8?
 A). 2 B). 3 C). 4 D). None of these

36). What is the remainder when $$\Large x^{40} + 2$$ is divided by $$\Large x^{4} + 1$$?
 A). 1 B). 2 C). 3 D). 4
37). What is the place value of 6 in 65489203?
 A). $$\Large 6\times10^{5}$$ B). $$\Large 6\times10^{4}$$ C). $$\Large 6\times10^{7}$$ D). $$\Large 6\times10^{8}$$
38). Find the face value of 6 in 652410.
 A). $$\Large 6\times10^{5}$$ B). $$\Large 6\times10^{4}$$ C). 6000 D). 6
39). Find the sum of the face values of 9 and 6 in 907364
 A). 15 B). 20 C). 9 D). 18
40). Find the sum of place and face values of 8 in 43836.
 A). 88 B). 808 C). 880 D). 888
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Total Pages : 36