Mathematical operation and symbol notation
- Which of the following interchange of sing or numbers would make the given equation correct ?
5 + 6 ÷ 3 - 12 x 2 = 17
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Correct Option: A
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∵ 5 + 6 x 3 - 12 ÷ 2 = 17
⇒ 5 + 18 - 6 = 17 ⇒ 23 - 6 = 17
- Which of the following interchange of sing or numbers would make the given equation correct ?
(18 ÷ 9) + 3 x 5 = 45
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Correct Option: B
∵ (18 ÷ 9) + 3 x 5 = 45
⇒ (18 + 9) ÷ 3 x 5 = 45 ⇒ 27 ÷ 3 x 5 = 45
- Which of the following interchange of number would make the given equation correct ?
8 x 20 ÷ 3 + 9 - 5 = 38
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Correct Option: D
∵ 8 x 20 ÷ 3 + 9 - 5 = 38 ⇒ 8 x 20 ÷ 5 + 9 - 3 = 38
⇒ 8 x 4 = 9 - 3 = 38 ⇒ 32 + 9 - 3 = 38
- Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
8 * 6 * 96 * 2 = 0
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Correct Option: B
∵ 8 * 6 * 96 * 2 = 0
⇒ 8 x 6 - 96 ÷ 2 = 0
⇒ 48 - 48 = 0
- Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
9 * 3 * 3 * 3 * 6
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Correct Option: A
∵ 9 ÷ 3 x 3 - 3 = 6 ∵ 3 x 3 - 3 = 6
⇒ 9 - 3 = 6 ⇒ 6 = 6