If + means x, x means -, ÷ means +, - means ÷, then 175 - 25 ÷ 5 + 20 x 3 + 10 equals to:

If ÷ means +, - means ÷, x means - and + means x, then the value of ((36x4)-8x4)/(4+8×2+16÷1) is

If + means ×, − means ÷, × means − and ÷ means +, find 15+8×4−2÷10.

Which of the following two signs needs to be interchanged to make the given equation correct? 24 − 8 / 4 + 5 × 3 = 14

If + means multiplication, ÷ means subtraction, − means addition and × means greater than, which expression is correct?

Rahul is 3 times as old as Seema. Laxmi was twice as old as Rahul four years ago. In four year's time, Rahul will be 31. What are the present ages of Seema and Laxmi?