A and B started a business by investing Rs. 18,500 and Rs. 22,500 respectively. If B's share in the profit earned by them is Rs. 900, then what is the total profit ?

Rs. 1640

Profit Ratio = Investment ratio × Time ratio

                                     A                              B

Investment               18500                     22500

                                    37           :              45

Time ratio                      1            :               1

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Profit                           37            :              45

 According to question,

45R = 900

1R = 20

So, Total profit = 82R

= 82×20

= 1640

The correct answer is Option (4) → Rs. 1640