Question
Matthew sells Chocolates in the packs of 6 chocolates,
12 chocolates, 18 chocolates and 24 chocolates etc, but the rate is necessarily uniform. One day Carlos purchased at the rate of 6 chocolates for a rupee and the next day he purchased equal number of chocolates at the rate of 12 chocolates for a rupee. Next day he sold all the chocolates at the rate of 18 chocolates for Rs. 2. What is his percentage profit or loss?Solution
Cost of one chocolate (in first case) = 1/6 = 16.66 paise Cost Price of one Chocolate (in second case) = 1/12 = 8.33 paise Average Cost Price of one chocolate = ((16.66 + 8.33)/2) = 12.5 paise Selling Price of one chocolate = 200/18 paise Loss % = (12.5- 200/18 )/12.5 ×100 = 25/(18 ×12.5) ×100 = 11.11%
Speed of a boat in still water is three times the speed of the boat in upstream. If the boat takes 25 minutes to cover 25 km in downstream, then find th...
Speed of current is equal to 20% of speed of boat in still water. If the boat takes 4 hours to cover 120 km in still water, then find the time taken by ...
The speed of a boat in still water is 8 km/hr and the speed of the stream is 2 km/hr. A man rows to a place at a distance of 30 km and comes back to the...
The speed of boat downstream and upstream is 28 km/hr and 18 km/hr respectively. Time taken to travel a distance of (m + 35) km downstream and (n + 22) ...
A boatman rows 216 km upstream in 6 hours and 432 km downstream in 6 hours. How long will it take to row 324 km in still water?
A boat goes 40km upstream in 8 hours and 36km downstream in 6 hours. The speed of the boat in still water.
The ratio of the speed of boats βAβ and βBβ in still water is 8:9, respectively. The speed of the current is 25% of the speed of boat βAβ in...
If a man rows at the rate of 17 kmph in still water and his rate against the current is 7 kmph, then find the man’s speed with downstream....
The speed of the boat in still water is 6 km/hr and the speed of the stream is 3 km/hr. A boat goes 108 km downstream with its usual speed but at the ti...
The speed of a boat in still water is 11 times the speed of the stream. If the difference between the upstream and downstream speed of the boats is 20 k...