Which two signs and numbers need to be interchanged to make the following equation correct? $(\sqrt{225}\div{8})+(112\times{7})+23-12=130$

Which two signs and numbers need to be interchanged to make the following equation correct?

$(\sqrt{225}\div{8})+(112\times{7})+23-12=130$

A8 and 7, × and −

B7 and 23, ÷ and ×

C112 and 23, ÷ and −

D8 and 7, ÷ and ×

Answer:

The given equation can be solved in the following manner

8 and 7, × and −

(√225 ÷ 8) + (112 × 7) + 23 - 12 = 130

(15×8) + (112−7) + 23 - 12 = 130

120 + 105 + 23 −12 = 130

248 −23 = 130

225 ≠ 130

7 and 23, ÷ and ×

( √225 ÷ 8 ) + ( 112 × 7 ) + 23 - 12 = 130

(15÷ 7) + (112 × 23) + 23 - 12 = 130

(2.14) + (2,526) + 23 - 12 = 130

2551.4 - 12 ≠ 130

112 and 23, ÷ and −

( √225 ÷ 8 ) + ( 112 × 7 ) + 23 - 12 = 130

(15÷ 112) + ( 112 - 23 ) + 23 - 12 = 130

0.133 + 89 + 23 - 12 = 130

112.133 - 12 = 130

100.133 ≠ 130

8 and 7, ÷ and ×

(√225 ÷ 8) + (112 × 7) + 23 - 12 = 130

(√225 × 7) + (112 ÷ 8) + 23 - 12 = 130

(15 × 7) + 14 + 23 - 12 = 130

105 + 14 + 23 - 12 = 130

130 = 130

Hence, the correct answer is 8 and 7, ÷ and ×

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