2 If $\sqrt{3} = 1.732$, find the value of $\sqrt{196} -\frac{1}{2}\sqrt{48} - \sqrt{75}$ correct to 3 places of decimal. A) 3.254 B) 2.531 C) 1.523 D) 1.732
3 Evaluate $\sqrt{\frac{9.5 \times .0085 \times 18.9}{.0017 \times 1.9 \times 0.021}}$ A) 134 B) 125 C) 140 D) 150
4 Simplify : $\sqrt{\left(12.1^{2}-8.1^{2}\right)\div \left(0.25^{2}+\left(0.25\right) \left(19.95\right)\right)}$ A) 4 B) 3.5 C) 2.45 D) 3.7
5 If $\sqrt{15}= 3.88$, find the value of $\sqrt{\frac{5}{3} }$ A) 1.93 B) 1.2 C) $1.29\overline{3}$ D) 1.293
6 Find fhe least square number which is exactly divisible by 10, 12, I5 and 18. A) 800 B) 12000 C) 1000 D) 900
7 $\left( \sqrt{\frac{225}{729} } - \sqrt{\frac{25}{144} } \right) + \sqrt{\frac{16}{81} } = ?$ A) $\frac{4}{15} $ B) $\frac{5}{16} $ C) $\frac{5}{17} $ D) $\frac{7}{16} $
10 By what least number 4320 be multiplied to obtain a number which is a perfect cube ? A) 40 B) 50 C) 60 D) 70
12 For what value of * the statement $(\frac{*}{15})(\frac{*}{135})$ =1 is true? A) 15 B) 25 C) 35 D) 45
13 The approximate value of $\frac{3\sqrt{12}}{2\sqrt{28}}+\frac{2\sqrt{21}}{\sqrt{98}}$ is : A) 1.0605 B) 1.0727 C) 1.6007 D) 1.6026
15 If $\sqrt{2}$ = 1.414 ,the square root of $\frac{\sqrt{2}-1}{\sqrt{2}+1}$ is nearest to : A) 0.172 B) 0.414 C) 0.586 D) 1.414