All Exams Test series for 1 year @ ₹349 only
Question

Solve: 0.00081 ÷ 0.09
A.0.09
B.0.009
C.0.9
D.0.0009

This question was previously asked in
RRB NTPC 2015 CBT 1 Question Paper PDF (2-Apr-2016) (Shift 3)
The correct answer is

B

This question tests the standard Simplification concept and its direct application to the stated values.

The given quantities are substituted into the standard formula or relation, and the expression is simplified step by step following BODMAS/identity rules.

Carrying out the calculation yields the required value: 0.009.

Hence, the correct answer is 0.009.

Was this answer helpful?

Similar Questions

  1. What will the value of the following expression be? 

    $\left(\frac{6+3}{3}\right) - 5 \times (4+5)$

  2. What is the value of the following expression?
    $\frac{\sqrt{225}}{14} \times \frac{\sqrt{196}}{22} \times \frac{\sqrt{484}}{15}$
  3. The value of $\frac{(5.4)^3 - 0.064}{(5.4)^2 + 2.16 + 0.16}$ is:
  4. The value of $\sqrt{10 + \sqrt{221 + \sqrt{12 + \sqrt{16}}}}$ is:
  5. Solve the following.
    $(1 + \frac{1}{x})(1 + \frac{1}{x+1})(1 + \frac{1}{x+2})(1 + \frac{1}{x+3}) = ?$
  6. The value of $\sqrt{0.04} + \sqrt{1.44} + \sqrt{1.69} + \sqrt{0.0009}$ is:
  7. The value of $\frac{32 \div 4 - 5 \times 8 \div 3}{5 \times 3 - \{6 + 3\}}$ is:
  8. What is the value of $x$, if $-3 \times \sqrt{196} + \sqrt{x} = 8 \times 3 - 2$?
  9. What is the value of $\sqrt{\frac{1.21 \times 0.9}{1.1 \times 0.11}}$?
  10. The value of $\frac{\{(13)^3 - 4^3\}}{13 - 8 \div 2} \div 8 - \{2 + 6 \times 9\}$ is:

Important Questions from Simplification

  1. What will come in the place of the question mark ‘?’ in the following question?

    (15 + 24) × 3 ÷ 13 + 18 – 5 = ?

  2. What should come in place of the question mark '?' in the following question?

    \n13 × 3 of 5 ÷ 26 = ? + 2.5
  3. What should come in place of the question mark '?' in the following question?

    10% of 450 - (8 × 5) = ? × 5

  4. What will come in the place of the question mark ‘?’ in the following question?

    (66)2 - (34)2 + ?2 = (60)2

  5. What will come in the place of the question mark ‘?’ in the following question?

    3 × ? ÷ 9 = ∛729 × √121
Need Expert Advice?
Upcoming Exams
RRB ALP
November 03, 2026
Test Series
RRB NTPC img
Railways
RRB NTPC Under Graduate 2026 New Mock Test Series
1612 Tests 1 Tests Free
1020 Attempts
4.3(516)
English, Hindi, Telugu +7 More
More Questions from RRB NTPC

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App