Question

Which two numbers should be interchanged to make the given equation correct?
9 + 7 x 5 - 18+ 2 = 3 x 4 -10 + 45 - 5​

Answer 1

Answer:

9+7×5-18÷2=3×4-10+45÷5

Answer 2

Which two numbers should be interchanged to make the given equation correct?

(I) 9 + 7 x 5 - 18 ÷ 2 = 3 x 4 -10 + 45 ÷5​

The options are:

(a) 18 and 45

(b) 7 and 4

(c) 2 and 5

(d) 9 and 3

Step-by-Step Explanation:

• The given equation is  9 + 7 x 5 - 18 ÷ 2 = 3 x 4 -10 + 45 ÷ 5​,

• By interchaning 7 and 4, the equation changes as,

             9 +4 x 5 - 18 ÷ 2  = 3 x 7 - 10 + 45 ÷ 5

             9 +(4 x 5) - (18 ÷ 2)  = (3 x 7) - 10 + (45 ÷ 5)

             9 + 20 - 9 = 21 - 10 + 9

                        20 = 20

Therefore, the two numbers that should be interchanged to make the given equation correct are 7 and 4.(option b)