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Data Sufficiency – Free Practice Questions

Data Sufficiency is part of Reasoning in government exams such as SSC MTS, SSC CHSL, SSC CGL, RRB Group D / Level-1, RRB NTPC and others. This page has 200 free practice questions in English and Hindi, with correct answers and explanations and short revision notes.

आँकड़ों की पर्याप्तता – हिंदी और अंग्रेज़ी में 200 निःशुल्क अभ्यास प्रश्न, उत्तर और व्याख्या के साथ।

Read short notesPractise with explanationsQuick quiz (10 questions)Timed topic test

Questions: 200 · Sets of 50: 4 · Difficulty mix: 200 medium · Languages: English and Hindi

Sample Data Sufficiency questions with answers

Q1. What is the age of Ravi? I. Ravi is 5 years older than Mohan. II. Mohan is 20 years old.

रवि की आयु क्या है? I. रवि, मोहन से 5 वर्ष बड़ा है। II. मोहन की आयु 20 वर्ष है।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both together are needed
  4. Either I or II alone is sufficient
Answer: Both together are needed. I alone or II alone is not enough; together Ravi = 25.
अकेले I या II पर्याप्त नहीं; दोनों से रवि = 25

Q2. What is the age of D? I. E is taller than D. II. Five years ago, D was 29 years old.

D की आयु क्या है? I. E, D से लंबा है। II. पाँच वर्ष पहले D की आयु 29 वर्ष थी।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Statement II alone is sufficient. Statement II alone gives the answer; statement I does not help.
अकेला कथन II उत्तर देता है; कथन I सहायक नहीं।

Q3. How many students are there in the class? I. The class has 30 roll numbers, one for each student. II. H is the class monitor.

कक्षा में कितने छात्र हैं? I. कक्षा में हर छात्र का एक रोल नंबर है और कुल 30 रोल नंबर हैं। II. H कक्षा का मॉनिटर है।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Statement I alone is sufficient. Statement I alone gives the answer; statement II does not help.
अकेला कथन I उत्तर देता है; कथन II सहायक नहीं।

Q4. What is the value of x? I. 3x = 51 II. x is odd.

x का मान क्या है? I. 3x = 51 II. x विषम है।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Statement I alone is sufficient. Statement I alone gives the answer; statement II does not help.
अकेला कथन I उत्तर देता है; कथन II सहायक नहीं।

Q5. What is the value of x? I. 3x = 81 II. x is odd.

x का मान क्या है? I. 3x = 81 II. x विषम है।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Statement I alone is sufficient. Statement I alone gives the answer; statement II does not help.
अकेला कथन I उत्तर देता है; कथन II सहायक नहीं।

Q6. What is the speed of the car? I. The car travels 224 km. II. The journey takes 4 hours.

कार की चाल क्या है? I. कार 224 किमी चलती है। II. यात्रा में 4 घंटे लगते हैं।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Both statements together are needed. Neither statement alone is enough, but together they give the answer.
अकेला कोई कथन पर्याप्त नहीं, पर दोनों मिलकर उत्तर देते हैं।

Q7. What is the age of H? I. Five years ago, H was 19 years old. II. After three years, H will be 27 years old.

H की आयु क्या है? I. पाँच वर्ष पहले H की आयु 19 वर्ष थी। II. तीन वर्ष बाद H की आयु 27 वर्ष होगी।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Either I or II alone is sufficient. Each statement alone gives the answer.
हर कथन अकेले ही उत्तर देता है।

Q8. What is the speed of the car? I. The car travels 225 km. II. The journey takes 5 hours.

कार की चाल क्या है? I. कार 225 किमी चलती है। II. यात्रा में 5 घंटे लगते हैं।

  1. Statement I alone is sufficient
  2. Statement II alone is sufficient
  3. Both statements together are needed
  4. Either I or II alone is sufficient
Answer: Both statements together are needed. Neither statement alone is enough, but together they give the answer.
अकेला कोई कथन पर्याप्त नहीं, पर दोनों मिलकर उत्तर देते हैं।

Q9. What is the area of the rectangle? I. Its perimeter is 54 cm. II. Its length is 11 cm and breadth is 16 cm.

आयत का क्षेत्रफल क्या है? I. इसका परिमाप 54 सेमी है। II. इसकी लंबाई 11 सेमी और चौड़ाई 16 सेमी है।

  1. Even both together are not sufficient
  2. Either I or II alone is sufficient
  3. Statement II alone is sufficient
  4. Statement I alone is sufficient
Answer: Statement II alone is sufficient. Statement II alone gives the answer; I does not. (area = 176 sq cm)
केवल कथन II से उत्तर मिलता है; I से नहीं। (क्षेत्रफल = 176 वर्ग सेमी)

Q10. What is the age of Anil? I. The ratio of the ages of Raju and Anil is 5 : 3. II. Raju and Anil were born in different years.

अनिल की आयु क्या है? I. राजू और अनिल की आयु का अनुपात 5 : 3 है। II. राजू और अनिल अलग-अलग वर्षों में पैदा हुए।

  1. Even both together are not sufficient
  2. Statement I alone is sufficient
  3. Either I or II alone is sufficient
  4. Both statements together are needed
Answer: Even both together are not sufficient. Even together, the statements do not fix a single answer.
दोनों मिलकर भी एक निश्चित उत्तर नहीं मिलता।
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