A wire when bent into the form of a square encloses an area of 121 sq. cm. if the wire is bent in the form of a circle, then what would be the area?

In how many ways can the letters of MAHABHARAT be arranged so that
i) B and T are never together
ii) M, A, T, H occurs at first four places.

Find the variance and standard deviation for the data
35, 45, 30, 35, 40, 25

For 108 randomly selected college applicants, the following frequency
distribution for entrance exam scores was obtained. Construct a histogram, frequency polygon, and ogive for the data.
Class limits         Frequency
90-98                        6
99-107                     22
108-116                    43
117-125                    28
126-134                     9

Applicants who score above 107 need not enroll in a summer developmental programme. In this group, how many students do not have to enroll in the development programme?

A rectangle has the area equal to that of a square of side 80 cm. If the length of the rectangle is 160 cm, its breadth is
1) 60 cm                        2) 40 cm
3) 20 cm                         4) 30 cm

What are the binary representations of the following decimal numbers?
18, 27, 42

If 5 P(n,3) = 4P(n +1,3), then n is
1) 10                   2) 11
3) 12                   4) 14