Equations Quiz 2 – Punjab Meritorious School Preparation Portal

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1.5x + 2.4 y = 1.8, 2.5(x + 1) = 7y have solutions as

Question is mentioned below :

(x = p, y = q)

(x = q, y = p)

(x = 1, y = 1)

none of these

Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in the ratio 7 : 9 If each saves ₹. 50 per month find their monthly incomes.

(500, 400)

(400, 500)

(300, 600)

(350, 350)

Question is mentioned below :

(5, 2)

(-2, -5)

(2, - 5)

(2, 5)

Solve for x and y : x - 3y = 0, x + 2y = 20

x = 4 y = 12

x = 12 y = 4

x = 5, y = 4

none of these.

The age of a person is twice the sum of the ages of his two sons and five years ago his age was thrice the sum of their ages. Find his present age.

60 years

52 years

51 years

50 years

The solution of the set of equations 3x + 4y = 7, 4x – y = 3 is

(1, - 1)

(1, 1)

(2, 1)

(1, - 2)

3x – 4y + 70z = 0, 2x + 3y -10z = 0, x + 2y + 3z = 13

(1, 3, 7)

(1, 7, 3)

(2, 4, 3)

(-10, 10, 1)

A number between 10 and 100 is five times the sum of its digits. If 9 be added to it the digits are reversed find the number.

54

53

45

55

Find the fraction which is equal to 1/2 when both its numerator and denominator are increased by 2. It is equal to 3/4 when both are increased by 12.

3/8

5/8

2/8

2/3

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