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
Answer: Option C

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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
Answer: Option A
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.    \(\sqrt{2}-\sqrt{5}\)
Answer: Option C
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
Answer: Option B
Question 4.

  1. (18)3.5 ÷ (27)3.5  x  63.5  = 2?   

Options:
  1.    3.5
  2.    7
  3.    10.5
  4.    14
Answer: Option B
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
Answer: Option C
Question 6.

  1. If  \((\frac{a}{b})^{x - 1}=(\frac{b}{a})^{x - 3}\)  then the value of “x”

Options:
  1.    1
  2.    2
Answer: Option B