Observe the following (3+4)+5=7+5=12

Observe the following molecules : PCl_(5) , BrF_(5), ClF_(5), PF_(5)ClF_(3), XeF_(4), XeF_(2), IF_(5) The number of molecules having square pyramidal geometry from the above is

Identify the bigger one among the following: (-4)/9 , (-5)/12 , (-7)/18 , (-2)/3

Observe the following number pattern: 1,3,5,7,9,…….write next 3 numbers in the pattern

Find the mean deviation about the median for the following data: 3, 9, 5, 3, 12, 10, 18, 4, 7, 19, 21.

Complete the following : (5/7)^3 = 5^3/square .

Calculate the following 5/6+7/12

Calculate the following 3/5+7/4

Find the modulus of the following (4 +3i)/(5-12i)

Find the mode of the following data. a) 5, 6, 9, 10, 6, 12, 3, 6, 11, 10, 4, 6, 7. b) 20, 3, 7, 13, 3, 4, 6, 7, 19, 15, 7, 18, 3. c) 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6.

Find the modes of the following data. 5, 7, 4, 5, 6, 2, 5, 2, 4, 7, 5