Hint: Converting given pictorial data (here data = each basket) with the corresponding number 100 and half basket with 50.
Complete step-by-step answer:
Convert each basket against each merchant with the corresponding number to obtain the fruit baskets sold by each, where the complete basket represents 100 fruit baskets and half fruit basket represents 50 fruit baskets.
Number of fruit baskets of each merchant:
Rahim = $4 \times 100 = 400$ (4 full picture each of 100 baskets),
Lakhanpal = $(5 \times 100) + (1 \times 50) = 550$ (5 full picture each with 100 baskets and one with 50),
Anwar = $7 \times 100 = 700$ , (7 full picture each of 100 baskets),
Martin = $(9 \times 100) + (1 \times 50) = 950$, (9 full picture each with 100 baskets and one with 50),
Ranjit Singh = $8 \times 100 = 800$ , (8 full picture each of 100 baskets),
Joseph = $(4 \times 100) + (1 \times 50) = 450$, (4 full picture each with 100 baskets and one with 50),
(a) Merchant Martin sold 800 which is the maximum number of fruit baskets among all the other merchants.
Adding all the obtained number of baskets,
Total number of baskets \[ = 400 + 550 + 700 + 950 + 800 + 450 = 3850\]
Number of fruit baskets sold by Anwar = 700
Merchants who have sold 600 or more number of baskets are planning to buy a godown for
The next season are Anwar, Martin, Ranjit singh.
(c) Anwar, Martin, Ranjit singh
Note: Students should convert the data from pictorial representation not by adding the values but by multiplying the value of a figure by number of times the figure is repeated and then adding them, otherwise the students might get confused in counting.