If - means ×, × means +, + means ÷ and ÷ means -, then 40 × 12 + 3 - 6 ÷ 60 = ?

E. NONE OF THESE

Give interchanges :
Signs - and x and numbers 3 and 6.

B. 3 - 6 X 8 = 10

If × means ÷, - means ×, ÷ means + and + means-, than (3 - 15 ÷ 19) × 8 + 6 = ?

C. 2

Given interchanges :
Signs + and - and numbers 4 and 8.

B. 4 - 8 + 12 = 0

Find out the two signs to be interchanged for making following equation correct :
5 + 3 x 8 - 12 ÷ 4 = 3

B. - AND ÷