ML Aggarwal CBSE Solutions Class 8 Math 8th Chapter Direct and Inverse Variation Exercise 8.1
(2) (i)
x | 3 | 5 | x3 | x4 | 10 |
y | 45 | Y2 | 90 | 120 | Y5 |
Now, x/y = constant
Taking = 5/y2 = 3/45 => y2 = 75 (Ans)
x5/90 = 3/45 => x3 = 6 (Ans)
x4/120 = 3/45 => x4 = 8 (Ans)
10/y5 = 3/45 => y5 = 150 (Ans)
(ii)
x | 4 | 8 | x3 | 20 | 28 |
y | 7 | Y2 | 21 | Y4 | Y5 |
Now, x/y = Constant
8/y2 = 4/7 => y2 = 14 (Ans)
x3/21 = 4/7 => x3 = 12 (Ans)
20/y4 = 4/7 => y4 = 35 (Ans)
28/y5 = 4/7 => y5 = 49 (Ans)
good job keep it up