## Lakshya Education MCQs

Question:

Solve it   (17)3.5  x  (17)?  = 178

Options:
 A. 2.5 B. 3.5 C. 4.5 D. 5.5

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## More Questions on This Topic :

Question 1.

1. If $$x^{2}\times8^{\frac{1}{5}}=2^{\frac{1}{5}}$$ then x is equal to

Options:
1.    $$-\frac{2}{5}$$
2.    $$\frac{2}{5}$$
3.    $$-\frac{3}{5}$$
4.    none of these
Question 2.

1. The square root of 7 +$$2\sqrt{10}$$is

Options:
1.    $$\sqrt{3}+\sqrt{2}$$
2.    $$\sqrt{3}-\sqrt{2}$$
3.    $$\sqrt{5}+\sqrt{2}$$
4.    $$\sqrt{2}-\sqrt{5}$$
Question 3.

$$(\frac{x^{m^{2}+n^{2}}}{x^{- mn}})^{m - n} \times(\frac{x^{n^{2}+l^{2}}}{x^{- nl}})^{n - 1} \times (\frac{x^{l^{2}+m^{2}}}{x^{- lm}})^{l - m}$$  on simplification becomes

Options:
1.    0
2.    1
3.    2
4.    3
Question 4.

1. (18)3.5 ÷ (27)3.5  x  63.5  = 2?

Options:
1.    3.5
2.    7
3.    10.5
4.    14
Question 5.

The value of  $$\frac{(243)^{0.13}\times(243)^{0.07}}{(7)^{0.25}\times(49)^{0.075}\times(343)^{0.2}}$$  is

Options:
1.    $$\frac{1}{7}$$
2.    $$\frac{7}{3}$$
3.    $$\frac{3}{7}$$
4.    none of these
1. If  $$(\frac{a}{b})^{x - 1}=(\frac{b}{a})^{x - 3}$$  then the value of “x”