ax + 2y = 5 3x - 6y = 20 In the system of above, a is a constant if the system has one solution, which of the following CANNOT be the value of a...? Mcqs

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ax + 2y = 5 3x - 6y = 20 In the system of above, a is a constant if the system has one solution, which of the following CANNOT be the value of a...?

(A) -1
(B) 1

(C) 2
(D) -3

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A car travels at the speed of 36 km per hour. What is the distance traveled by the car within 20 second in meter:...?

(A) 100 m
(B) 150 m

(C) 200 m
(D) 250 m

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For what value of x+1/4√x +a² will be perfect square:...?

(A) ±1/18
(B) ±1/8

(C) 1/5
(D) 1/4

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If all the members of a team are juniors or seniors, and if the ratio of juniors to seniors on the team is 3:5, what percent of team members are seniors...?

(A) 37.5%
(B) 40%

(C) 60%
(D) 62.5%

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What number increased by 20% of itself is equal to 102...?

(A) 85
(B) 90

(C) 75
(D) 185

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The average of 50 numbers is 30. If two numbers 35 and 40 are discarded, then the average of the remaining numbers is nearly___________...?

(A) 28.32
(B) 29.68

(C) 28.78
(D) 29.27

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Look at this series 2, 6, 18, 54, number should come next What...?

(A) 108
(B) 148

(C) 162
(D) 218

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If 3a + 5b / 3 * a - 5b = 5 then a: b is equal to...?

(A) 2:1
(B) 2:3

(C) 1:3
(D) 5:2

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By converting 75% into fraction, answer will be:...?

(A) 3/4
(B) 2/3

(C) 1/3
(D) 1/4

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A person does his job in 30 days , the other in 20 days, how many days they consume if they work together

(A) 10
(B) 12

(C) 15
(D) 13

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