Question
A buffalo alone can plough field ‘A’ in 50 days. A
Bull alone can plough the field ‘A’ in 75 days. Find the number of days taken by 1 bulls and 3 buffalo to together plough field ‘B’ that is 12% larger than field ‘A’?Solution
Let the total work done to plough field ‘A’ = 150 units (LCM of 50 and 75) Then, efficiency of a buffalo = (150/50) = 3 units/day Efficiency of a bull = (150/75) = 2 units/day Total work required to plough field ‘B’ = 150 × 1.12 = 168 units Combined efficiency of 1 bulls and 2 buffalo = 1 × 2 + 2 × 3 = 8 units So, number of days required to plough field ‘B’ = 168/8 = 21 days
A Shopkeeper sold an article at 5% loss. If he had sold it for Rs. 350/- more, he would have made 20% profit, find the selling price of the article?
A shopkeeper bought two articles for Rs. 500 each. If he sold one of them at 25% profit and the other at 15% loss, then find the difference between the ...
A sold 20% more apples than B. Ratio of number of apples sold by B to number of apples sold by C is 8:9. Find the number of apples sold by A if number o...
A shopkeeper made a profit of P% on selling an article at a certain price. If the article is sold at 58.33% of the original selling price, the shopkeepe...
A trader marks an article 60% above its cost price. During a festival sale, he allows a discount of 25% on the marked price and still makes a profit of ...
The ratio between the cost price of book I and book J is 4:3 respectively. Each of the books was marked 20% above its cost price. If the MRP of book I i...
A shopkeeper bought three items: a microwave for Rs. 25w, a refrigerator for Rs. 40w, and a washing machine for Rs. 35w. The average price of these item...
Arun purchased a TV set for Rs 14000 and a DVD player for Rs. 8000. He sold both the items together for Rs. 26400. How much percent profit did he make? ...
M and N began a business with Rs. 2500 and Rs. 3500. After 4 months, M increases his contribution by Rs. 1000. If the total profit after 12 months is Rs...
The profit gained from selling a product for Rs. 9,500 equals the loss when the product is sold for Rs. 6,300. If the cost price of the product had been...
Relevant for Exams:
