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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 factory produces three types of products, X, Y, and Z. The average production of product X over 5 days is 120 units per day. The average production of...
A person sells two items, X and Y. The marked prices of X and Y are 25% and 40% higher than their cost prices, respectively. After a 10% discount on bot...
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The sum of the ages of a father and his son is 50 years. After 5 years, the father's age will be twice that of his son. What are their present ages?
The diameter of the base of a cylindrical drum is 14 cm and its height is 15 cm. The drum is full of water and the water from the drum is transferred to...
The vertices of a triangle are (2, 1), (5, 4), and (8, 1). What is the area of the triangle?
The average number of boys in three classes is 8 more than the average number of girls in the same three classes. The total number of girls in all the t...
If the roots of the equation x² + 5x + k = 0 are real and equal, find the value of k.
A shopkeeper sells an item at a 10% loss. Had he sold it for 40 more, he would have gained 10%. Find the cost price of the item
Find the income of Rahul.
Statement 1 : The saving of Rahul is Rs. 10,000 less than the saving of Piyush.
Statement 2 : The ratio of incom...
