Quantitative Aptitude - Arithmetic Ability Questions

Selling price of an article is Rs 1144. If loss percentage is 12%, then what is the cost price (in Rs) of article?

A man sells an article at a profit of 35%. If he had bought it for 15% less price and sold it for Rs. 32 less, then he would have gained 40%. What is the initial cost price (in Rs) of the article?

If l + m + n = 9 and l2+m2+n2 = 31, then the value of lm + mn + nl will be

What will come in the place of question mark (?) in the following question (You do not have to calculate the exact value)?

53.01 - 345.02 ÷ 22.99 = 2 ×(?)

If 13A = 11B = 8C, find A : B : C

25% discount is offered on an item. By applying a promo code the customer wins 4% cash back. What is the effective discount?

Length of two trains are 150 m and 200 m respectively and the ratio (shorter: longer) of their speed is 2 : 5. If they cross each other in opposite direction in 15 second then in what time faster train will overtake the slower train.

A quadrilateral is inscribed in a circle. If the opposite angles of the quadrilateral are equal and length of its adjacent sides are 6 cm and 8 cm, what is the area of the circle?