Quantitative Aptitude - Arithmetic Ability Questions

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?

What is the reflection of the point (2, 3) in the line y = 4?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

Sec 45% + Tan 30% =

Two numbers are in the ratio 5:6 when 6 is added to each, the ratio becomes 7:8 then the numbers are

What is the third proportional to 10 and 20?

If the shopkeeper sells an item at Rs 450 which is marked as Rs 600, then what is the discount he is offering?

A shopkeeper marks his goods 40% above the cost price and allows a discount of 25% on it. His gain % is