Top 50+ Solved Mathematical Tools for Economics 1 MCQ Questions Answer
Q. What is the Cartesian product of A = {1, 2} and B = {a, b}?
a. {(1, a), (1,
b. , (2, a), (b, b)} b) {(1, 1), (2, 2), (a, a), (b, b)}
c. {(1, a), (2, a), (1, b), (2, b)}
d. {(1, 1), (a, a), (2, a), (1, b)}
Q. Which of the following two sets are equal?
a. a = {1, 2} and b = {1}
b. a = {1, 2} and b = {1, 2, 3}
c. a = {1, 2, 3} and b = {2, 1, 3}
d. a = {1, 2, 4} and b = {1, 2, 3}
Q. Sum of two numbers is 84. One of the numbers is 20 more than the other. The smallernumber is
a. 12
b. 22
c. 32
d. 42
Q. Variables of linear equation is implicitly raised to
a. first power
b. second power
c. third power
d. four power
Q. Example of linear equation involving two variables is
a. 7x+3y+4z = 20
b. 6x+2y = 10
c. 8x = 2+10
d. 7a+8b+9c = 10+5
Q. In the linear equation 'ax+by = c' the a and b cannot be equal
a. to rational numbers
b. to one
c. to zero
d. set of even numbers
Q. Two variables x and y if involved in linear equation then the equation is
a. ax+by = c
b. ab+xy = c
c. ac+bx = y
d. ax+bc = y
Q. If one of the factor of x2 + x – 20 is (x + 5). Find the other
a. x – 4
b. x + 2
c. x + 4
d. x – 5
Q. The value of the unknown for which equation is true is called -------- of the equation.
a. explanation
b. variable
c. solutions
d. none of the above