`785.837+106.931+27.280`

The weights of 9 boxes in kgms are as follows: 27.5, 31.2, 28.0, 32.0, 29.8, 30.3, 92.0, 28.7, 31.5 Find the appropriate average weight of the boxes.

15 16 20 28 45 70 106

Find the sum by suitable rearrangement. 837 + 208 + 363 .

Find out the wrong no. in the following series? 26, 27, 34, 58, 106, 186, 306

(-1)^106 =

((785xx785xx785+435xx435xx435)/(785xx785+435xx435-785xx435)) simplifies to (a) 350 (b) 785 (c) 1220 (d) 1320 .

Add: 67.25, 249, 8.785, 9.8 and 0.23

Find : 106^(2)