What value should come in place of the question mark (?) in the following question?

52x14+145018=1998÷?

If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is

If a+b+c = 6 and ab+bc+ca = 1, then the value of bc(b+c) + ca(c+a) +ab(a+b) +3abc is

If X=32, then the value of 27x3-54x2+36x-11 is

Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is

The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age

If percentage of profit made,when an article is sold for Rs.78, is twice as when it is sold for Rs.69, the cost price of the article is

If 177 is divided into 3 parts in the ratio 1/2 : 2/3: 4/5, then the second part is

A merchant changed his trade discount from 25% to 15%. This would increase selling price by