The total number of such possible cases is
Explanation:
Let the sales for January be a, b and c tons respectively for each of them.
∴ Total sales for Jan and Feb for
Ahaan: 800 × a + 1200 × (25 - a) = 30,000 – 400a Vihaan: 800 × b + 1200 × (28 - b) = 33,600 – 400b Riyaan: 800 × c + 1200 × (33 - c) = 39,600 – 400c
Total sales is same for all three.
∴ 30,000 – 400a = 33,600 – 400b = 39,600 – 400c
⇒ b - a = 9 or c – b = 15
⇒ b = 9 + a and c = 24 + a
∴ Possible solutions are
∴ 7 cases are possible
Hence, option (d).
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