The ratio of number of male workers and female workers in a company is 5:1. If the company has 250 male workers, how many female workers are there in the company? How many more female workers are need to be recruited so that the ratio becomes 1:1?

[(- 2)^(-2) ]^(-3)  is equal to
1) 64                    2)
3) - 64                  4)

Simplify the following

How will you represent the following numbers in Roman numerals?
210, 450, 530, 345

Perform the following steps listed below and check whether the answer is a multiple of 9?
Step-1 Choose a number between 100 and 1000
Step-2 Interchange its first and last digits to make another number
Step-3 Subtract the small number from the largest number
Step-4 Repeat step-2 for the number obtained in step-3
Step-5 Now add the numbers obtained in step-3 and step-4.
Try with some other starting number between 100 and 1000 and check whether the answer is a again a multiple of 9.

,

then is equal to

i)                                        ii)

iii)                                       iv)

A Tangram is a shape that is divided into different pieces, which can then be rearranged to make lots of shapes. The first tangram was invented in china and is as given below:

Identify the quadrilaterals and triangles in the shape and name the type of each one, Create another shape using the different pieces given in the given shape following the rule: Whole side must match whole sides with edges meeting each other.