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3.For an experiment in Botany, two different plants, plant A and plant B were grown under similar laboratory conditions. Their heights were measured at the end of each week for 3 weeks. The results are shown by the following graph :
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(a) How high was Plant A after (i) 2 weeks (ii) 3 weeks?
(b) How high was Plant B after (i) 2 weeks (ii) 3 weeks?
(c) How much did Plant A grow during the 3rd week?
(d) How much did Plant B grow from the end of the 2nd week to the end of the 3rd week?
(e) During which week did Plant A grow most?
(f) During which week did Plant B grow least? *
(g) Were the two plants of the same height during any week shown here? Specify.
Answer :
(a) The height of the plant A
(i) after 2 weeks was 7 cm.
(ii) after 3 weeks was 9 cm.
(b) The height of the plant B
(i)after 2 weeks was 7 cm
(ii)after 3 weeks was 10 cm.
(c) The plant A grew up 2 cm during the 3rd week.
(d) The plant B grew up 3 cm from the end of the 2nd week to the end of the 3rd week.
(e) During second week, plant A grows the most.
(f) During the first week, plant B grows the most.
(g) The height of the two plants were same at the end of the 2nd week.