Observe the tables given below and in each case find whether x and y are inversely proportional:

(i)


X



6



10



14



16



Y



9



15



21



24



(ii)


X



5



9



15



3



45



Y



18



10



6



30



2



(iii)


X



9



3



6



36



Y



4



12



9



1



Here we check the values of x × y


(i) 6 × 9 = 54, 10 × 15 = 150, 14 × 21 = 294, 16 × 24 = 384 ; unequal


(i) 5 × 18 = 90, 9 × 10 = 90, 15 × 6 = 90, 3 × 30 = 90,45 × 2 = 90; equal


(i) 9 × 4 = 36, 3 × 12 = 36, 6 × 6 = 36, 6 × 9 = 54, 36 × 1 = 36 ;unequal


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