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Quantitative practice

Averages Questions with Answers

Mean of a set, weighted averages, and what happens to an average when one member enters or leaves. This page pools every averages question on the site — 195 of them, from 51 exams, weighted towards Banking, Management, SSC — so you can drill the topic on its own instead of meeting four of them inside a full paper.

8% of the pool is graded hard on this site’s own scale and 30% easy, which is gentler than the average topic in this section.

Questions
195
Practice set
25 in 25 min
Difficulty
59/120/16
Negative marking
None
Start Averages practice

Averages questions with solutions

6 from the 195-question pool, worked in full.

  1. 1. Find the average of 15, 25, 35, and 45.

    • A. 25
    • B. 30 ✓
    • C. 35
    • D. 20

    Solution. Sum = 120, and 120 ÷ 4 = 30.

  2. 2. The average of 15 numbers is 32. If each number is increased by 4, what is the new average?

    • A. 32
    • B. 34
    • C. 36 ✓
    • D. 38

    Solution. Increasing every number by 4 increases the average by 4 as well: 32 + 4 = 36.

  3. 3. The average of five room-service bills is ₹640. Four bills total ₹2,380. The fifth bill is

    • A. ₹820 ✓
    • B. ₹640
    • C. ₹760
    • D. ₹900

    Solution. Five bills total 5×640=₹3,200; subtract ₹2,380 to get ₹820.

  4. 4. The average of 12 numbers is 45. If 62 is replaced by 38, what is the new average?

    • A. 43 ✓
    • B. 41
    • C. 44
    • D. 42

    Solution. The total decreases by 62 - 38 = 24, so the average decreases by 24/12 = 2, from 45 to 43.

  5. 5. The average height of 20 students is 158 cm. If a new student of height 179 cm joins, find the new average.

    • A. 158 cm
    • B. 159 cm ✓
    • C. 160 cm
    • D. 161 cm

    Solution. Original total = 158×20 = 3,160 cm. New total = 3,160+179 = 3,339 cm for 21 students. New average = 3,339/21 = 159 cm.

  6. 6. The average weight of 6 people increases by 3 kg when a new person replaces one who weighs 55 kg. Find the weight of the new person.

    • A. 70 kg
    • B. 73 kg ✓
    • C. 75 kg
    • D. 78 kg

    Solution. The total weight increases by 6 × 3 = 18 kg. The new person's weight = 55 + 18 = 73 kg.

Exams that set Averages

11 categories, led by Banking, Management, SSC.

Also set by INET, IPMAT Indore, IPMAT Rohtak, JAIN JET, JIPMAT, KMAT Karnataka, KSDAT, LIC AAO, MAH MBA CET, MAH UG CET, MAT, MICAT, NABARD Grade A, NCHM JEE, NIACL AO, NIFT, NIPER JEE, NMAT, RBI Assistant, RBI Grade B, RPF Constable, RPF Sub-Inspector, RRB Group D, RRB Junior Engineer, RRB NTPC, SBI Clerk, SBI PO, SEBI Grade A, SIDBI Grade A & B, SNAP, SSC CGL, SSC CHSL, SSC CPO, SSC GD Constable, SSC MTS, SSC Selection Post, TANCET MBA, TG LAWCET, UPSC CSE. Browse all exams.

Averages: frequently asked questions

How many averages questions are there?

195, from the 51 exams here whose syllabus sets the topic. 30% are graded easy and 8% hard, which makes averages one of the more tractable topics in this section, against a 17% average.

Which exams ask averages questions?

51 of the exams on this site, weighted towards Banking (14), Management (14), SSC (6). Every question in this pool comes from one of their own mock tests, so the list below is the honest answer to whether the topic is worth your time.

Is averages hard?

8% of these 195 questions are graded hard and 30% easy, making it one of the more tractable topics in this section, against a 17% average.

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