Basic Mathematics

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Q: Which of the following is the additive identity in the set of Whole numbers ?

(a) :  1
(b) :  zero
(c) :  -1
(d) :  any number
(e) :  none
Answer:  zero
Explanation:  

Q: Set of Prime numbers:

(a) :  [1, 3, 5, 7, 9, .....]
(b) :  [2, 3, 5, 7, 11, ...]
(c) :  [2, 3, 4, 5, 7, 9, ....]
(d) :  [1, 4, 6, 8, 9, 10, ....]
(e) :  none
Answer:  [2, 3, 5, 7, 11, ...]
Explanation:  

Q: five million one hundred ninety five can be written in decimal system as

(a) :  5000195
(b) :  5000195
(c) :  50,00,195
(d) :  5,00,01,95
(e) :  none
Answer:  50,00,195
Explanation:  

Q: What is the value of 8x1769x125

(a) :  1769000
(b) :  1768000
(c) :  1768010
(d) :  1769010
(e) :  none
Answer:  1769000
Explanation:  

Q: Every set is ___________ of itself.

(a) :  Power set
(b) :  Improper subset
(c) :  Null set
(d) :  Power set
(e) :  none
Answer:  Improper subset
Explanation:  

Q: If f is a function from set A to set B such that then

(a) :  f is 1-1
(b) :  f is into
(c) :  f is on-to
(d) :  f is bijective
(e) :  none
Answer:  f is on-to
Explanation:  

Q: There is no proper subset of ___

(a) :  Empty set
(b) :  Power set
(c) :  Single ton set
(d) :  Subset
(e) :  none
Answer:  Empty set
Explanation:  

Q: If (3, y+1) = (3,-1) then value of y will be 2

(a) :  _3/2
(b) :  3
(c) :  _3
(d) :  2รท3
(e) :  none
Answer:  _3
Explanation:  

Q: What is the measure of each angle of an equilateral triangle?

(a) :  30 degree
(b) :  40 degree
(c) :  60 degree
(d) :  90 degree
(e) :  none
Answer:  60 degree
Explanation:  
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