Correct option is A
After interchanging + and -, Option (a)
18 ÷ 3 – 8 × 5 + 4 = 6 – 40 + 4 = -30
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Question
By interchanging the given two signs which of the following equation will be not correct?
+ and -
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- 1)If $ means +, @ means ×, # means -, and * means ÷, then what is the value of :5 @ 20 * 4 $ 6 # 30 = ?
- 2)
What will come in the place of the question mark ‘(?)’ in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
116 ÷ 5 − 423 × 3 + 13 = ? - 3)If '+' means '-', '-' means '×', '×' means '÷' and '÷ means '+', then what will come in place of the question mark (?) in the following equation?
98 × 14 + 6 ÷ 36 - 8 = ? - 4)Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.(87 * 63) * 6 * 1 * 5
- 5)
Which of the following equations is correct when the numbers 12 and 6 are interchanged and the signs ÷ and + are interchanged?
- 6)
Which of the following equations is correct when the numbers 3 and 9 are interchanged and the signs - and × are interchanged?
- 7)If 'p' means '×', 'q' means '-', 'r' means '÷' and 's' means '+', then which of the following equation is NOT correct?I. 44 s 51 r 17 q 20 p 4 = -31II. 57 r 19 s 5 p 10 q 18 = 35
- 8)What will come in the place of the question mark (?) in the following equation, if '+' and '×' are interchanged and '-' and '÷' are interchanged?
28 - 4 × 12 ÷ 5 + 3 = ? - 9)
If 'P' stands for 'x', 'Q' stands for '÷', 'R' stands for '-' and 'S' stands for '+', then the resultant of which of the following would be 57?
- 10)If ‘÷’ means ‘+’, ‘×’ means ‘-’, ‘+’ means ‘÷’ and‘-’ means ‘×’,select the number from among the given options that can replace the question mark (?) in the following equation.9 × 16 + 8 ÷ 6 – 3 = 32 + ? ÷ 3 – 8
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