Maths-
General
Easy
Question
Dimple Bought a Calculator and binder that were both 15% off the original price. The
original price of binder was Rs 6.20. Justin spent a total of Rs 107. 27 . What was the
original price of the calculator?
Hint:
○ Form the equation using the given information.
○ Take variable quantity as x or any alphabet.
○ Percentage x of y is given by
The correct answer is: Rs. 120
○ Given:
Original price of binder = Rs.6.20
Total money spent = Rs.107.27
Discount = 15% on both
○ Step 1:
○ Find purchasing price of binder:
It is given that original price of binder is Rs.6.20 and 15% discount is given
So,
The purchasing price of binder is:
6.20 - 15% of 6.20
6.20 - 6.20
6.20 - 0.93
5.27
Purchasing price of binder = Rs. 5.27
○ Step 2:
○ Find purchasing price of calculator:
It is given that total money spent is Rs.107.27
So,
Purchasing price of calculator + Purchasing price of binder = 107.27
Purchasing price of calculator + 5.27 = 107.27
Purchasing price of calculator = 107.27 - 5.27
Purchasing price of calculator = 102
Purchasing price of calculator is Rs. 102.
○ Step 3:
○ Find original price of calculator:
○ Let the original price of calculator be Rs. x.
It is given that 15% discount is given on original price of calculator
So,
x - 15% of x = 102
x - 
x = 102
= 102
85x = 102 
100
x = 
x = 120
Original price of calculator is Rs. 120.
- Final Answer:
Hence, original price of calculator is Rs. 120..
The x + 2 = 6 x+2=6x, plus, 2, equals 6 contains a variable. We call this type of equation with a variable an algebraic equation. Finding the variable value that will result in a true equation is typically our aim when solving an algebraic equation.
¶Variables or constants are the two types of measurable quantities. A variable is a quantity with a varying value, and the constant value is nothing but a constant.
¶Steps to writing Variable Equation
1) Identify the variables that represent the unknowns.
2) Convert the issue into variable expressions in algebra.
3) Determine the variables' values to solve the equations for their true values.
Related Questions to study
Maths-
Explain how you can prove PR = PS.
Explain how you can prove PR = PS.
Maths-General
Maths-
Use the Law of Detachment to make a valid conclusion in the true situation.
If a number is odd, then its square is odd.
Use the Law of Detachment to make a valid conclusion in the true situation.
If a number is odd, then its square is odd.
Maths-General
Maths-
Show the conjecture is false by finding a counterexample. If a + b = 0, then a = b = 0.
Show the conjecture is false by finding a counterexample. If a + b = 0, then a = b = 0.
Maths-General
Maths-
Prove that ∠PRS ≅ ∠PSR
Prove that ∠PRS ≅ ∠PSR
Maths-General
Maths-
Solve 
Solve
Maths-General
Maths-
Show the conjecture is false by finding a counterexample. If the product of two numbers is positive, then the two numbers must both be positive.
Show the conjecture is false by finding a counterexample. If the product of two numbers is positive, then the two numbers must both be positive.
Maths-General
Maths-
Use the Law of Detachment to make a valid conclusion in the true situation.
Jim works every alternate day. He worked yesterday.
Use the Law of Detachment to make a valid conclusion in the true situation.
Jim works every alternate day. He worked yesterday.
Maths-General
Maths-
Show the conjecture is false by finding a counterexample. The square root of any positive integer x is always less than x.
Show the conjecture is false by finding a counterexample. The square root of any positive integer x is always less than x.
Maths-General
Maths-
Use the Law of Syllogism to write a new conditional statement that follows from the pair of true statements.
If 𝑃 ⊆ 𝑄, then 𝑃 ⊆ 𝑅.
If 𝑃 ⊆ 𝑅, then 𝑃 ⊆ 𝑆.
Use the Law of Syllogism to write a new conditional statement that follows from the pair of true statements.
If 𝑃 ⊆ 𝑄, then 𝑃 ⊆ 𝑅.
If 𝑃 ⊆ 𝑅, then 𝑃 ⊆ 𝑆.
Maths-General
Maths-
Aaryan has Rs 50 and saves Rs 5.50 each week. Charan has Rs 18.50 and saves Rs7.75 each week. After how many weeks will Aaryan and Charan have saved the same amount ?
Aaryan has Rs 50 and saves Rs 5.50 each week. Charan has Rs 18.50 and saves Rs7.75 each week. After how many weeks will Aaryan and Charan have saved the same amount ?
Maths-General
Maths-
Explain how you can prove that AB = CD
Explain how you can prove that AB = CD
Maths-General
Maths-
Show the conjecture is false by finding a counterexample. All prime numbers are odd.
Show the conjecture is false by finding a counterexample. All prime numbers are odd.
Maths-General
Maths-
Solve 
Solve
Maths-General
Maths-
Complete the conjecture. The sum of the first n odd positive integers is ____.
Complete the conjecture. The sum of the first n odd positive integers is ____.
Maths-General
Maths-
Use the Law of Syllogism to write a new conditional statement that follows from the pair of true statements.
If an element is in set A, then it is in set B.
If an element is in set C, then it is in set A.
Use the Law of Syllogism to write a new conditional statement that follows from the pair of true statements.
If an element is in set A, then it is in set B.
If an element is in set C, then it is in set A.
Maths-General
