18 Questions
What is the price of the painting after the first cycle of price increase and decrease?
Rs 441
How many 2-digit numbers can be formed if the digits in the number should appear in ascending order, based on the given information?
9C2
What is the value of 'x' in the equation P^2 - 2826.81P + 4412 = 0?
441
How many 3-digit numbers can be formed if the digits in the number should appear in ascending order, based on the given information?
9C3
What is the total number of possible arrangements of digits from 1 to 9 to form a number?
$512$
In the context provided, what is the correct solution for nC0 + nC1 + nC2 + ... + nCn?
$2n$
After offering an 8% discount, the selling price of an item becomes Rs. 92. What was the original selling price of the item?
Rs. 100
If a product initially costs Rs. 100 and its price decreases by 20%, then increases by 20%, what is the final price of the product?
Rs. 96
If a price decreased by 4% each day, what will be the price on the 17th day if it started at Rs. 100?
Less than Rs. 60
In a mixture of types A, B, and C with prices a, b, and c respectively, if a > b > c and 5 kg of mixture contains 1 kg of A, 2 kg of B, and 2 kg of C, what is the value of x if x = ? kg?
5
If there is no change in profit after increasing sales by 25%, what is the initial profit percentage before the increase in sales?
20%
If the cost price of an item is Rs. 115 and after offering an 8% discount, the selling price becomes Rs. 95, what is the discount amount?
Rs. 20
What is the selling price per kg after adding 2 kg of C to the mixture?
(a+2b+4c) / 8
Based on the given equation, what is the relationship between a, b, and c?
a = b + c
What is the cost price of the mixture per kg after combining all the elements?
(a+2b+2c) / 5
If a/b = 8/5, what is the relationship between a and b?
a = 8b / 5
What is the interest retained by Gopal if he borrowed Rs. (X + Y)?
0.02X + 0.1Y
In the second case, how much did the interest retained by Gopal increase by?
$150
Study Notes
Price Calculations
- After the first cycle of price increase and decrease, the price of the painting is not specified.
- The original selling price of an item, after offering an 8% discount, becomes Rs. 92.
- If a product initially costs Rs. 100 and its price decreases by 20%, then increases by 20%, the final price is not specified.
- If a price decreases by 4% each day, the price on the 17th day, starting at Rs. 100, is not specified.
- The discount amount, if the cost price of an item is Rs. 115 and after offering an 8% discount, the selling price becomes Rs. 95, is Rs. 20.
Combinations and Permutations
- The number of 2-digit numbers that can be formed if the digits in the number should appear in ascending order is not specified.
- The number of 3-digit numbers that can be formed if the digits in the number should appear in ascending order is not specified.
- The total number of possible arrangements of digits from 1 to 9 to form a number is not specified.
- The correct solution for nC0 + nC1 + nC2 + ...+ nCn is 2^n.
Mixtures and Ratios
- In a mixture of types A, B, and C with prices a, b, and c respectively, if a > b > c and 5 kg of mixture contains 1 kg of A, 2 kg of B, and 2 kg of C, the value of x is not specified.
- The selling price per kg after adding 2 kg of C to the mixture is not specified.
- The relationship between a, b, and c is a > b > c.
- The cost price of the mixture per kg after combining all the elements is not specified.
Algebra and Equations
- The value of 'x' in the equation P^2 - 2826.81P + 4412 = 0 is not specified.
- If a/b = 8/5, the relationship between a and b is a is 8/5 times b.
Interest and Borrowing
- The interest retained by Gopal if he borrowed Rs.(X + Y) is not specified.
- The increase in interest retained by Gopal in the second case is not specified.
Test your knowledge on profit and loss calculations with this quiz involving discounts, selling prices, cost prices, and percentage increases. Practice solving equations to determine changes in profit in business scenarios.
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