y = a / b x+c y= d/e x+c The equations of two perpendicular lines in the xy-plane are shown above, where a, b, c, d, and e are constants If 0 < 1 which of the following true...? Mcqs

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y = a / b x+c y= d/e x+c The equations of two perpendicular lines in the xy-plane are shown above, where a, b, c, d, and e are constants If 0 < 1 which of the following true...?

(A) d / e < 1
(B) - 1 < d / e < 0

(C) 0 < 1
(D) d/c>1

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A can do a piece of work in 6 days and b can do the same work in 12 days. How will it take if both A and B do the work together...?

(A) 4
(B) 6

(C) 8
(D) 10

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The average age of three boys is 15 years and their ages are in proportion 3:5: 7. What is the age in years of the youngest boy...?

(A) 9 years
(B) 15 years

(C) 18 years
(D) 21 years

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The binary decimal of 10100 is...?

(A) 20(10)
(B) 200(10)

(C) 200(100)
(D) None of these

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A man can do a piece of work in 5 days, but with the help of his son he can do it in 3 days. In what time can the son do it alone...?

(A) 7.5 days
(B) 6.5 days

(C) 5.5 days
(D) 4.5 days

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

(A) -1
(B) 4

(C) 1
(D) -3

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A person crosses a 500 m long street in 5 minutes. What is his speed in km/h...?

(A) 5
(B) 4

(C) 6
(D) 7

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If you pay $2290 for a DVD that includes a 7% sales tax, what is the price of the DVD before the sales tax...?

(A) $23
(B) $21.40

(C) $25
(D) $20.50

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The sum of two numbers is 45. 4 times the first number is 9 less than 5 times the second, what are the two numbers...?

(A) 24 and 21
(B) 22 and 23

(C) 25 and 28
(D) 26 and 21

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The principal which will amounts to Rs 270.40 in 2 years at the rate of 4% per annum compound interest is..?

(A) 150
(B) 200

(C) 250
(D) None of these

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