Question
The total cost price of a mobile charger and an earphone is
Rs. 375. Earphone is sold at a profit of 37.5% while charger is sold at a loss of 4%. Find the selling price of the charger if the selling price of the earphone is Rs. 275.Solution
Let the cost price of earphone be 8t
Selling price of earphone = 8t + (3/8) x 8t = 11t
Let the cost price of charger be 25y
Selling price of charger = 25y - (1/25) x 25y = 24y
Given, 11t = 275
=> t = 25
Cost price of the earphone = 8t = 8 x 25 = Rs. 200
Hence, cost price of charger = 375 - 200 = Rs. 175
=> 25y = 175
=> y = 7
Hence, required selling price of the charger = 24y = 24 x 7 = Rs. 168
A car has to cover a distance of 240 km in 30 hours. If it covers half of the journey in 3/5 th of the time, the speed to cover the remainin...
Speed of a boat in still water is 18 km/h while the speed of stream is ____ km/h. Total time taken by the boat to go 90 km upstream and 210 km downstrea...
A boat, whose speed in still water is 25% more than the speed of the current, covers 810 km downstream in _____ hours. The speed of the boat in still wa...
A boat takes one-third time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the cur...
If the sum of upstream and downstream speed is 24 km/hr and the speed of the current is 5 km/hr. Then find time taken to cover 51 km in downward?
A man can row his boat with the stream at 15 km/h and against the stream in 8 km/hours. The manβs rate isΒ
The speed of a motorboat in still water is 25 km/h and the speed of the stream is 5 km/h. The boat first goes 120 km downstream and then covers a certa...
Two boats A and B start towards each other from two places, 600 km apart. Speed of the boat A and B in still water are 23 km/h and 17 km/h respectively....
A boat covers a distance of 150 km while moving in a downstream in 5 hours. When the boat covers a distance of 60 km in still water in 3 hours, then Wha...
A man can row at 3 kmph in still water. If the velocity of current is 2 kmph and it takes him 6 hour to row to a place and come back, how far is the place?