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

312 – 13 × 14 + 207 ÷ 4 = 539

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.

32 * 14 * 18 * 9 * 12 * 22

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

(3, 9, 2)

(8, 6, 8)

(5, 3, ?)

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

Select the set in which the numbers are related in the same way as are the numbers of the given sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(38, 29, 67)

(43, 36, 79)