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Figure out how much it will cost to buy 5 bags, each with 25 kg of rice at ₹20.04 per kg and 20 kg of dal at ₹15.28 per kg.
A bag contains 25 kg of rice at ₹20.04 per kg and 20 kg of dal at ₹15.28 per kg. What is the total cost of 5 such bags?
The total cost of 5 bags is Rs.4033.
Explanation
To find the total cost of 5 bags, we can calculate the cost of each item separately and then sum them up.
For rice: Weight of rice per bag = 25 kg Cost of rice per kg = ₹20.04
Cost of rice per bag = Weight of rice per bag * Cost of rice per kg = 25 kg * ₹20.04/kg = ₹501
For dal: Weight of dal per bag = 20 kg Cost of dal per kg = ₹15.28
Cost of dal per bag = Weight of dal per bag * Cost of dal per kg = 20 kg * ₹15.28/kg = ₹305.6
Now, calculate the total cost for one bag: Total cost per bag = Cost of rice per bag + Cost of dal per bag = ₹501 + ₹305.6 = ₹806.6
Since there are 5 bags, the total cost for 5 bags is: Total cost for 5 bags = Total cost per bag * Number of bags = ₹806.6 * 5 = ₹4033
Therefore, the total cost of 5 bags is ₹4033.
Word problems in Mathematics
Word problems in mathematics often involve translating real-life situations into mathematical expressions or equations. Here are a few examples across various mathematical topics:
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Basic Arithmetic: John has 15 apples. He gives 3 apples to his friend Mary. How many apples does John have now?
Solution: John now has 12 apples (15 – 3).
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Algebra: The sum of twice a number and 7 is 15. Find the number.
Solution: Let the number be x. The equation is 2x + 7 = 15. Solving for x, we find x = 4.
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Geometry: The perimeter of a rectangle is 20 cm. If the length is 6 cm, find the width.
Solution: Let the width be w. The perimeter is given by 2(length + width), so 2(6 + w) = 20. Solving for w, we find w = 4.
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Percentage: If a shirt originally costs $40 and is now on sale for 25% off, what is the sale price?
Solution: The discount is 25% of $40, which is $10. So, the sale price is $40 – $10 = $30.
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Rate and Time: If a car travels at a speed of 60 km/h, how far will it travel in 2.5 hours?
Solution: Distance = Speed × Time. Distance = 60 km/h × 2.5 h = 150 km.
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Source: Math Hello Kitty
Categories: Math
