Quantitative Aptitude - Arithmetic Ability Questions

A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

There are a total of 200 students in a school, of which 7/10th are boys. Find the number of girls in the school.

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 ΔABC is 98 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

Two numbers are in the ratio 4:5 and their HCF is 13. Their LCM is

Compute of 69696 x 9999 =

The point P(-­4,1) divides the segment joining the points (x,0) and (0,y) in the ratio 3:2. Find x and y?

What is the average of all the one digit, two digit and three digit natural numbers?

G is the centroid of the equilateral triangle ABC, if AB = 9cm then AG is equal to