`1. 5^2xxsqrt(0. 0225)=?` (a) 0.0375 (b) 0.3375 (c) 3.275 (d) 32.75

sqrt(110. 25)xxsqrt(0. 01)-:sqrt(0. 0025)-sqrt(420. 25) equals (a) 0.50 (b) 0.64 (c) 0.73 (d) 0.75

Given 168xx32=5376 , then 5. 376-:16. 8 is equal to (a) 0.032 (b) 0.32 (c) 3.2 (d) 32

( ^(75)P_2- ^(75)C_2)=? (a) 0 (b) 75 (c) 150 (d) 2775 (e) 5550

The sum of 2.75 and 3.78 is 1.03 (b) 1.53 (c) 4.53 (d) 5.53

The value of sin(2\ (tan^(-1)0. 75)) is equal to (a) 0.75 (b) 1.5 (c) 0.96 (d) sin^(-1)1. 5

(0.05xx5-0.005xx5) equals 0.0225(b)0.225(c)0.250(d)0.275

Calculate the concentration of K^(o+) (x) and Cl^(ɵ) (y) in a solution obtained by mixing 20 " mL of " 0.1 M NaCl , 30 " mL of " 0.2 M KCl, and 25 " mL of " 0.15 M KNO_3 and making the solution up to 100 mL. (a). x=0.06,y=0.0375 (b). x=0.0975, y=0.08 (c). x=0.08,y=0.08 (d). x=0.08,y=0.0375

The value of (0.2+0.3+0.32) is 0.77 (b) 0.82(c)0.86(d)0.87

If A=[(2 ,0 ,0),( 0 ,2 ,0),( 0 ,0 ,2)] , then A^5= (a) 5A (b) 10 A (c) 16 A (d) 32 A

The square root of (0.75)^(3)/(1-(0.75))+(0.75+(0.75)^(2)+1) is-