Answer:
(a) A book costs three times the cost of a notebook. (b) Tony's box contains 8 times the marbles on the table. (c) Total number of students in the school is 20 times that of our class. (d) Jaggu's uncle is 4 times older than Jaggu and Jaggu's aunt is 3 yr younger than his uncle. (e) The total number of dots in an arrangement is 5 times the number of rows.
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