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b) i- Fifth -135
ii- 6:5
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(a) we would put classes on X-axis(5th,6th,7th,8th,9th,10th) and no. of children on Y-axis(80,90,100 and so on),that,X-axis = 1 unit = 10 children.
(b) (i) Maximum = 5th and minimum = 10th
(ii) Class 6th : class 8th
=> 120 : 100
=> 120/100 = 12/10 = 6/5
∴ The ratio will be 6:5
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