Check the following sets of numbers , whether they are in propotion.
(i) 2,3,6,9 (ii) ` 2/3,3/4,5/6,3/5`

Check whether the following sets of numbers are in propotion or not in the given order. 2,3,2016, 2019 (ii) 12, 15,32, 40

Check whether the following numbers are in proportion or not : 3.6, 0.4, 4.5, 0.5

Simplify each of the following and write as a rational number of the form p/q :\ (i) 3/4+5/6+(-7)/8 (ii) 2/3+(-5)/6+(-7)/9

Check whether the following equations are consistent or inconsistent. 4x+6y = 9,2x+3y = 5

Using slope concept, check whether the following points are collinear.(ii)(-2,-3), (33/8,4), (5,5)

Check whether the following matrix is invertible or not. [[1,2,3],[3,4,5],[4,6,8]]

Check whether the following equations are consistent or inconsistent. 2x+y = 5, 3x+4y= 6

Write the following rational numbers in ascending order: (i) (-3)/5, (-2)/5, (-1)/5 (ii) (-1)/3, (-2)/9, (-4)/3 (iii) (-3)/7, (-3)/2, (-3)/4