To combat air pollution, the government of which of the

What will come in the place of question mark (?) in the given expression?

(360 ÷ 24 + 105)% of ? = 48

(p + 3) ² + (q – 7) ² + (r + 4)² = 0, then find the value of p + q – r.

if 2^x +3^y =7 and 2^x+2 -3^y+2 =7, then find the value of x and y.

In △ ABC, AB = AC. A circle drawn through B touches AC at D and intersect AB at P. If D is the midpoint of AC and AP = 2.5 cm, then AB is equal to:

If 70% of ‘y’ is 25% more than 30% of 140, then value of ‘y’ is:

If a + `1/b` = 1 and b + `1/c` =1 , then the value of c + `1/a` is

If x = (2+√3)/(2-√3), y = (2-√3)/(2+√3). Then find out the value of (x²+y²-xy)/(x²+y²+xy)?

If x + y = 12 and x² + y² = 74, find xy.