Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation.
48 * 4 * 6 * 3 * 30
Option 1: –, +, =, ×
Option 2: ÷, =, ×, +
Option 3: ÷, +, ×, =
Option 4: –, =, ×, +
Correct Answer: ÷, +, ×, =
Solution :
Given:
48 * 4 * 6 * 3 * 30
First option:
–, +, =, ×
48 – 4 + 6 = 3 × 30
L.H.S.→48 – 4 + 6
= 54 – 4 = 50
R.H.S.→3 × 30 = 90
L.H.S. ≠ R.H.S
Second option:
÷, =, ×, +
48 ÷ 4 = 6 × 3 + 30
L.H.S.→48 ÷ 4 = 12
R.H.S.→6 × 3 + 30
= 18 + 30 = 48
L.H.S. ≠ R.H.S
Third option:
÷, +, ×, =
48 ÷ 4 + 6 × 3 = 30
L.H.S.→48 ÷ 4 + 6 × 3
= 12 + 6 × 3
= 12 + 18 = 30
R.H.S.→30
L.H.S. = R.H.S
Fourth option:
–, =, ×, +
48 – 4 = 6 × 3 + 30
L.H.S.→48 – 4 = 44
R.H.S.→6 × 3 + 30
= 18 + 30 = 48
L.H.S. ≠ R.H.S
Only the third option satisfies the R.H.S. of the given equation. Hence, the third option is correct.
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