A man lost Rs 3 on every bottle of medicine he sold. Find his gain on selling 7 bottles of this medicine?
If he loses "Rs 3" on every bottle, there is no gain. Have you omitted some data?
In our textbook it's -Rs12
So what is the formula for finding the answer
His gain on selling one bottle is -3, sohis gain on selling x bottles is just
-3x
Now plug in x=7
I get -21, not -12.
To find the gain on selling 7 bottles of this medicine, we need to understand the concept of profit and loss.
Profit is the financial gain that is made when the selling price of a product is higher than its cost price. Loss, on the other hand, occurs when the selling price is lower than the cost price.
In this case, the man is selling bottles of medicine and incurring a loss of Rs 3 on each bottle. This means that for every bottle he sells, he is losing Rs 3.
To calculate his gain on selling 7 bottles of medicine, we need to first determine his total loss. The total loss would be the loss per bottle multiplied by the number of bottles sold.
Total Loss = Loss per Bottle × Number of Bottles Sold
In this case, the loss per bottle is Rs 3, and the number of bottles sold is 7. Thus, the total loss would be:
Total Loss = Rs 3 × 7 = Rs 21
Since the man is incurring a loss, his gain would be negative. Therefore, his gain on selling 7 bottles of medicine would be:
Gain = - Rs 21
Hence, his gain on selling 7 bottles of this medicine would be a loss of Rs 21.