Quantitative Aptitude - Arithmetic Ability Questions

If 1+121+141+161+181-131-151-17 = 1+ 1x, then what is the value of x?

If tanA = x, then x is

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 sq cm, what is the ratio of area of ΔADE: area of quadrilateral BDEC?

A right circular conical structure stands on a circular base of 21m diameter and is 14m in height. The total cost of colour washing for its curved surface at Rs. 6 per sq. m. is
(Take Π = 22/7 )

A piece of work can be done by 16 men in 8 days working 12 hours a day. How many men are needed to complete another work, which is three times the first one, in 24 days working 8 hours a day?

If a cone of radius 10.5 cm and height 12 cm is melted and constructed into a cylinder of the same radius, what will be the height of this cylinder?

When Vijay sells 12 pens, he gains the selling price of 2 pens. Calculate his % profit?

In the given fig, ST||RP, then what is the value of supplementary angle y (in deg)?