Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
39*4*61*18*4*49*7*30
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. ×,−,=, ×,−,÷,+
Given equation: 39*4*61*18*4*49*7*30
By checking all the options one by one and applying the signs accordingly,
1. +,−,=,×,−,+,÷
39 + 4 − 61 × 18 = 4 − 49 + 7 ÷ 30
⇒ 39 + 4 − 1098 = 4 − 49 + 0.23
⇒ -1054 = -44.77
-1054 is not equal to -44.77.
2. ×,−,=, ×,−,÷,+
39 × 4 − 61 = 18 × 4 − 49 ÷ 7 + 30
⇒ 156 − 61 = 72 − 7 + 30
⇒ 95 = 95
95 is equal to 95.
The equation is balanced. So, no need to check other options.
Hence, option 2 is the correct option.