Quantitative Aptitude - Arithmetic Ability Questions

BD and CE are two medians of the triangle ABC. If EO = 7 cm, then the length of CE is

Ramesh and Rahman can do a work in 20 and 25 days respectively. After doing collectively 10 days of work, they leave the work due to illness and Suresh completes rest of the work in 3 days. How many days Suresh alone can take to complete the whole work ?

ABCD is a trapezium in which AB is parallel to CD and AB = 4(CD). The diagonals of the trapezium intersects at O. What is the ratio of area of triangle DCO to the area of the triangle ABO?

If (cotAcotB - 1) / (cotB + cotA) = x, then the value of x is

What value of 'p' will satisfy the equation p540 = 240p ?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

What is the sum of the first 12 terms of an arithmetic progression if the 3rd term is -13 and the 6th term is -4?