Start learning →

DSSSB TGT — free MCQ practice

Choose from 3,234 questions across 20 subjects and 354 topics. Open any question for its answer and worked solution, or keep learning through bite-sized lessons and reviews with Quill.

Start learning DSSSB TGT with Quill →

DSSSB TGT subjects

Mathematics (518)Quantitative Aptitude (406)Reasoning (387)Science (371)English (328)Chemistry (270)Physics (226)Social Science (201)Biology (181)General Knowledge (60)Geography (46)History (38)Polity (34)TGT (30)Environment (20)Pedagogy (14)Currentaffairs (7)Economics (6)Civics (5)Natural Sciences (1)

Explore popular topics

Distance and DirectionBlood RelationsCoding DecodingVenn DiagramsAnalogiesAnalogyNumber SeriesNumber Series, Coding and Decoding and Odd Man OutActive Passive VoiceIdiomsArticlesDirection SenseEnglish LanguageSynonymsTensesVocab Grammar IdiomsReading ComprehensionIdioms and PhrasesVocabularyDirect Indirect SpeechEnglishAlcohols Phenols EthersAlkenesChemical EquilibriumClassification of Elements and PeriodicityOrganic Chemistryp-Block Elementsp-Block Elements (Groups 15-18)PolymersS Block Elements

Try a DSSSB TGT question

Which of the following fractions will have a non-terminating recurring decimal expansion?Read the answer and worked solution →Which of the following rational numbers has a terminating decimal expansion?Read the answer and worked solution →Let $r$ be a non-zero rational number and $x$ be an irrational number. Which of the following must be irrational?Read the answer and worked solution →Which statement is always true about the sum of a rational number and an irrational number?Read the answer and worked solution →

Worked practice questions

Which of the following fractions will have a non-terminating recurring decimal expansion?

  1. $\frac{3}{40}$
  2. $\frac{7}{125}$
  3. $\frac{11}{24}$
  4. $\frac{9}{20}$
Show answer and solution

Correct answer: C. $\frac{11}{24}$

A rational number has a recurring decimal if, in lowest terms, the denominator contains a prime factor other than 2 or 5. Since $24=2^3\times 3$ contains 3, $\frac{11}{24}$ is non-terminating recurring. The others have denominators made only of 2s and 5s.

Open this question →

Which of the following rational numbers has a terminating decimal expansion?

  1. $\frac{7}{12}$
  2. $\frac{13}{25}$
  3. $\frac{11}{18}$
  4. $\frac{5}{21}$
Show answer and solution

Correct answer: B. $\frac{13}{25}$

A rational number terminates when, in lowest terms, its denominator has only 2s and/or 5s as prime factors. Here $25=5^2$, so $\frac{13}{25}$ terminates. The other denominators contain 3 or 7, so they are recurring decimals.

Open this question →

Let $r$ be a non-zero rational number and $x$ be an irrational number. Which of the following must be irrational?

  1. Only $r+x$
  2. Only $rx$
  3. Both $r+x$ and $\frac{x}{r}$
  4. Neither $r+x$ nor $rx$
Show answer and solution

Correct answer: C. Both $r+x$ and $\frac{x}{r}$

The notes state that the sum of a rational and an irrational number is irrational. They also state that the product and quotient of a non-zero rational number and an irrational number are irrational. **Hence both $r+x$ and $x/r$ are irrational.**

Open this question →

How to practise

  1. Choose a DSSSB TGT question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.