DSSSB · Arithmetical and Numerical Ability

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Five questions to begin your revision

Open each answer only after choosing your own response.

01Medium · ✓ Verified answer

DSSSB recruitment practice check: Find the average of 51, 54, 57, 60 and 63.

  1. 59
  2. 60
  3. 57
  4. 55
Check answer and explanation +
C — 57

The five values are symmetric around 57; their sum is 285, and 285 ÷ 5 = 57. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Average; mapped to the published DSSSB recruitment quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
02Medium · ✓ Verified answer

DSSSB recruitment high-priority drill: Find the average of 52, 55, 58, 61 and 64.

  1. 61
  2. 58
  3. 56
  4. 60
Check answer and explanation +
B — 58

The five values are symmetric around 58; their sum is 290, and 290 ÷ 5 = 58. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Average; mapped to the published DSSSB recruitment quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
03Medium · ✓ Verified answer

DSSSB recruitment foundation revision: Find the average of 53, 56, 59, 62 and 65.

  1. 59
  2. 57
  3. 61
  4. 62
Check answer and explanation +
A — 59

The five values are symmetric around 59; their sum is 295, and 295 ÷ 5 = 59. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Average; mapped to the published DSSSB recruitment quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
04Medium · ✓ Verified answer

DSSSB recruitment speed-building set: Find the average of 54, 57, 60, 63 and 66.

  1. 58
  2. 62
  3. 63
  4. 60
Check answer and explanation +
D — 60

The five values are symmetric around 60; their sum is 300, and 300 ÷ 5 = 60. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Average; mapped to the published DSSSB recruitment quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
05Medium · ✓ Verified answer

DSSSB recruitment accuracy checkpoint: Find the average of 55, 58, 61, 64 and 67.

  1. 63
  2. 64
  3. 61
  4. 59
Check answer and explanation +
C — 61

The five values are symmetric around 61; their sum is 305, and 305 ÷ 5 = 61. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · Average; mapped to the published DSSSB recruitment quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
✓

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