Question : Directions: Select the correct combination of mathematical signs to replace * signs and balance the following equation.
6 * 4 * 12 * 12
Option 1: +, –, =
Option 2: +, =, ÷
Option 3: =, –, ÷
Option 4: ×, –, =
Correct Answer: ×, –, =
Solution :
Given:
6 * 4 * 12 * 12
Let's check the options –
First option:
+, –, =
⇒ 6 + 4 – 12 = 12
Solving the L.H.S. of the equation –
= 6 + 4 – 12
= 10 – 12
= –2 ≠ 12
Second option:
+, =, ÷
⇒ 6 + 4 = 12 ÷ 12
= 10 ≠ 1
Third option:
=, –, ÷
⇒ 6 = 4 – 12 ÷ 12
Solving the R.H.S. of the equation –
= 4 – 12 ÷ 12
= 4 – 1
= 3 ≠ 6
Fourth option:
×, –, =
⇒ 6 × 4 – 12 = 12
Solving the L.H.S. of the equation –
= 6 × 4 – 12
= 24 – 12
= 12 (L.H.S. = R.H.S.)
So, only the fourth option satisfies the equation. Hence, the fourth option is correct.
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