What will come in place of the '?' in the following equation, if '+' and '-' are interchanged and 'x' and '÷' are interchanged? 56 +12 - 54 x 18 ÷ 6 = ?
To solve the problem, we need to interchange the given mathematical operators: replace '+' with '-', '-' with '+', 'x' with '÷', and '÷' with 'x'. Given equation: 56 + 12 - 54 x 18 ÷ 6 = ?
Applying the operator interchange:
56 - 12 + 54 ÷ 18 x 6 = ?
Now, follow the standard order of operations (BODMAS/BIDMAS), which is Brackets, Orders (i.e., powers and roots), Division and Multiplication (from left to right), Addition and Subtraction (from left to right).
First, perform the division and multiplication:
54 ÷ 18 = 3
Then result multiplied by 6:
3 x 6 = 18
Next, perform the addition and subtraction from left to right:
56 - 12 = 44
44 + 18 = 62
Therefore, the value of '?' is 62.
| Options | Value |
| 62 | Correct |
| 50 | Incorrect |
| 86 | Incorrect |
| 26 | Incorrect |
Important Questions from Maths Operations
- If 37 D 18 E 84 F 21 = 51 and 57 D 28 E 90 F 15 = 79, then 14 D 17 E 8 F 4 = ?
- This question is based on the five, three-digit numbers given below.
(Left) 194 582 419 149 825 (Right)
(Example- 697 – First digit = 6, second digit = 9 and third digit = 7)
What will be the resultant if the third digit of the highest number is added to the second digit of the lowest number? - If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 4813576, what will be the difference between the highest and the lowest digits in the number thus formed?
- If '+' means '-', '-' means '×', '×' means '÷', '÷' means '+', then what will come in place of the question mark (?) in the following equation?
316 - 2 ÷ 37 + 436 × 4 = ? - If 1 is added to each odd digit and 1 is subtracted from each even digit in the number 21673458, what will be the product of the greatest and smallest digit in the new number thus formed?
