Which of the following pairs of numbers and signs, when their positions are interchanged, will correctly solve the given mathematical equation

Which of the following pairs of numbers and signs, when their positions are interchanged, will correctly solve the given mathematical equation?

27 × 48 + 4 – 12 ÷ 4 = 63

(a)          48 and 12, – and ×

(b)          27 and 4, – and ÷

(c)           48 and 12, + and ×

(d)          48 and 12, + and –

Sol:

Solve by option (c)

27 × 48 + 4 – 12 ÷ 4 = 63

⇒27 + 12 × 4 – 48 ÷ 4

⇒27 + 48 – 12 =63