15 A 5 B 4 = 35
Balancing Equation: Finding Correct Math Signs
The goal is to find the correct mathematical signs for 'A' and 'B' in the equation $15 A 5 B 4 = 35$ to make it true.
Solving the Equation
We will test the options by substituting the signs for 'A' and 'B' and evaluating the expression using the order of operations (PEMDAS/BODMAS: Parentheses/Brackets, Exponents/Orders, Multiplication and Division from left to right, Addition and Subtraction from left to right).
Testing Option C: A = + , B = ×
Substitute '+' for 'A' and '×' for 'B' into the equation:
$15 + 5 × 4$
First, perform the multiplication:
$5 \times 4 = 20$
Now, perform the addition:
$15 + 20 = 35$
The result is 35, which matches the right side of the given equation. Therefore, this sequence of signs is correct.
Verification of Other Options (Brief)
- Option 1: $15 \times 5 - 4 = 75 - 4 = 71 \neq 35$
- Option 2: $15 \div 5 - 4 = 3 - 4 = -1 \neq 35$
- Option 4: $15 \div 5 \times 4 = 3 \times 4 = 12 \neq 35$
Only Option C provides the correct result.
Similar Questions
If '+' means minus, '-' means multiplication, '÷' means plus, and 'x' means division, then solve the equation:
15 - 3 + 10 x 5 ÷ 5If 'x' means 'addition', '-' means 'division', '/' means 'subtraction' and '+' means 'multiplication', then which of the equation is correct?
If '+' stands for multiplication, '-' stands for addition, 'x' stands for division, then what is the value of 128 + 9 - 16 x 4 = ?
If 'x' means addition, '-' means division, '÷' means subtraction and '+' means multiplication, then which of the equations is correct?
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Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis.
8x7x6=765, 5x3x2=421, 9x6x4=?
Which of the following interchanges of numbers (not digits) would make the given equation correct?
In a certain code language, '+' represents 'x', '-' represents '+', 'x' represents '=' and '=' represents '-'. What is the answer to the following question?
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Important Questions from Mathematical Operations
Select the set, from the given options, in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
(6, 13, 78)
(5, 22, 110)
If + means -, - means ×, × means ÷, ÷ means +, then what will come in place of the question mark (?) in the following equation?
28 - 6 ÷ 4 + 14 × 14 = ?
In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Which numbers should replace X and Y so that the pattern followed by the two numbers on the left side of :: is the same as that on the right side of :: ?
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 Operations on 13 such as adding/subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
X : 649 :: 956 : Y
Which two numbers should be interchanged to make the given equation correct?
75 ÷ 5 + 15 × 4 - 17 × 3 + (60 ÷ 6) × 10 = 100
(Note: Interchange should be done of the entire number and not individual digits of a given number.)
If '+' means minus, '-' means multiplication, '÷' means plus, and 'x' means division, then solve the equation:
15 - 3 + 10 x 5 ÷ 5
