The plant Indigofera tinctoria yielding a blue dye (nil)

There are 7 people in a group. Average age of the group decreases by 5 when two more people join the group. Find the average age of the new group.

What is the circumference of semi-circle (in cm)?

I. Area of the semi-circle is half of the area of a parallelogram.

What is the ratio of IT employees to HR employees in A?

What is three digit number having each digit different from the other?

I. Each of the digits of the given number is a multiple of 2.

A rectangular garden is fenced on all four sides, and it has a walkway along its perimeter. What is the area of the walkway?

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