[" 5."287times287-2times287times269+269times269=?],[" (a) "556quad " (b) "446quad " (c) "354quad " (d) "324]

Is [(-5)times2)]times3 = (-5)times[(2times3)] ?

Evaluate : a^2 times a^4 times b^5 times c^2 times b^2 times c^5

find the value 287xx287+269xx269-2xx287xx269=?

Round each of the following numbers to the nearest ten : (a) 53 (b) 287 (c ) 8364 (d) 2045

What is the ratio of the number of females in the HR and Accounts departments together to the number of males in the same departments together? (a) 311:269 (b) 268: 319 (c) 269:311 (d) 319:268 (e) None of these

The standard deviation of first 10 natural numbers is (a) 8.25 (b) 6.5 (c) 3.87 (d) 2.87

The standard deviation of first 10 natural numbers is (a) 8.25 (b) 6.5 (c) 3.87 (d) 2.87

287xx287+269xx269-2xx287xx269=?534(b)446(c)354 (d) 324 None of these

The standard deviation of first 10 natural numbers is a) 8.25 (b) 6.5 (c) 3.87 (d) 2.87

7 23 58 127 269 555