Question
A total journey of 250 km is completed by Ravi partly by
boat at 25 km/h and the remaining by train at 50 km/h. If the whole trip took 6.5 hours, find the distance covered by Ravi by boat.Solution
ATQ,
Let the distance covered by boat be ‘d’ km.
Distance by train = (250 - d) km
So, (d/25) + [(250 - d)/50] = 6.5
Take LCM of 25 and 50 = 50
Multiply both sides by 50:
=> 2d + (250 - d) = 325
=> 2d + 250 - d = 325
=> d + 250 = 325
=> d = 325 - 250
=> d = 75
Therefore, Ravi travelled 75 km by boat.
A shopkeeper marked an article 50% above its cost price and made a profit of Rs. 200 when he sold the article after giving a discount of 25%. Find the p...
An article is sold for Rs. 480 at 20% loss. If this article was sold at 12.5% profit, what would have been its selling price?
Rittu and Mittu started a cosmetic business with Rittu investing Rs. 30,000 and Mittu investing a certain amount of money. They hired a receptionist as ...
A trader marks a product 50% above its cost price and gives a discount of 20% on the marked price. If the selling price of 4 such products is Rs. 3840, ...
The ratio of the cost price and marked price of an article is 4:9, respectively. The article is sold after giving a discount of Rs. 700 such that there ...
A person named 'X' purchased a mobile phone and a headphone. He sells the mobile phone at a 20% profit and the headphone at a 10%...
A gold ring is sold for Rs.24,400 at a loss of 60%. What is the cost price of the gold ring?
Amit marked up an article of cost price Rs. 500 by certain percent and then sold it at discount of 20%. He suffered a loss of 12% in the whole transacti...
A person named 'P' purchased a table for Rs. _____ and a bed for Rs. 1500. He marked the price of the table 20% higher than its c...
By selling a pair of shoes for Rs.840, the gain is 20%. If the gain is reduced to 15%, find the resultant selling price (in Rs.).
Relevant for Exams:
