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(Error/Correction) Average Tricks - Type 6
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Type 6 Average TypeWise Error/Correction

## Pratiyogita Mantra is teaching live on Unacademy Plus

Pratiyogita Mantra
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U
Port of Santos is called coffee port of south america.it located in brazil.
a year ago
correct....
RT
Sir, wasn't able to understand last two questions. Please take them in doubt classes. Gap concept is not clear
ROHITH SHARMA
6 months ago
I am telling you Sollution of last one they given average marks of some students as 50 take number of students as X then total marks of X students will be avg * number of students = 50*X =50x substract it from 3000 here 3000=30*100 50X-3000/X=45 X=600
sir jyada zoom na kiya kro. . dikhta ni ae side side ka fir
Sir ek question tha time and work se so plz solve this sir ....A group of men decided to do a job in 8 days but since10 men dropped out every day,the job got completed at the end of the 12th day. How many men there at the beginning.....solve this sir plz.....thank you
SJ
Shubham Jaiswal
a year ago
195??
Venukumar dasanam
9 months ago
(m-10)+ (m-20)...+ (m-120)= 8m 4m= 780 m=195
sir last two questions samaj me nhi aaya plz firse ekbar smjado plz sir
sir observation wale sum mai last step mai kab plus karte hai kab minus ye samajh nahe aya
1. All the following TYPES will be covered: 1. Basic 2. inrsn ncluded/sxcluded/Replaced 3. Person Included/Excluded/Replaced-Age/Weight 4. Temperature/Rainfall 5. Income/Expenditure 6. Error/Correction 7. Twice/Thrice 8. Cricketer- Batting/Bowling Average 9. Classroom/Examination/Marks 10. Number System/Arithmetic Mean/Middle no. Etc. 11. Age of Youngest Child/Family Members 12. Average Speed 13. Most Important Questions 14. Miscellaneous SPECIAL COURSE FOR SSC & BANK EXAMS AVERAGE TYPEWISE MUST ENROLL/SAVE AVERAGE SPECIAL COURSE

3. AVERAGE TYPE 6 ERROR/CORRECTION

4. AVERAGE TYPEWISE TYPE 6 HIT LIKE In an exam, the average marks obtained by the students was found to be 60. After omission of computational errors, the aver- age marks of 100 candidates had to be changed from 60 to 30 and the average with respect to all the examinees came down to 45 marks. The total number of can- didates who took the exam, was (1) 200 (3) 240 RATE ASK YOUR DOUBTS (2) 210 (4) 180 DONT FORGET TO PRESS FOLLOW ENROLL/SAVE COMMENTS

5. AVERAGE TYPEWISE TYPE 6 HIT LIKE The average of marks in Math ematics for 5 students was found to be 50. Later, it was discovered that in the case of one student the marks 48 were misread as 84. The correct average is (1) 40.2 (3) 42.8 RATE (2) 40.8 (4) 48.2 ASK YOUR DOUBTS IN DONT FORGET TO PRESS FOLLOW ENROLL/SAVE COMMENTS

6. 48 84 -02 2 3612

7. AVERAGE TYPEWISE TYPE 6 HIT LIKE The average marks of 100 stu dents were found to be 40. Later on it was discovered that a score of 53 was misread as 83. Find the correct average correspond- ing to the correct score. (1) 38.7 (3) 39.7 RATE (2) 39 (4) 41 ASK YOUR DOUBTS IN DONT FORGET TO PRESS FOLLOW ENROLL/SAVE COMMENTS

8. 100 40 Ru 53830 39 30 3 l00

9. AVERAGE TYPEWISE TYPE 6 HIT LIKE The average of marks of 14 student was calculated as 71 But it was later found that the marks of one student had been wrongly entered as 42 instead of 56 and of another as 74 instead of 32. The correct average is (1) 67 (3) 69 RATE (2) 68 (4) 71 ASK YOUR DOUBTS IN DONT FORGET TO PRESS FOLLOW ENROLL/SAVE COMMENTS

10. 538

11. 31 1 5 9 95 -0.72 29.28 3 6 - -72 50

12. 64 46 18 24 28 82 92 128 2 3

13. AVERAGE TYPEWISE TYPE 6 HIT LIKE In an exam, the average marks obtained by the students was found to be 60. After omission of computational errors, the aver- age marks of 100 candidates had to be changed from 60 to 30 and the average with respect to all the examinees came down to 45 marks. The total number of can- didates who took the exam, was (1) 200 (3) 240 RATE ASK YOUR DOUBTS (2) 210 (4) 180 DONT FORGET TO PRESS FOLLOW ENROLL/SAVE COMMENTS

14. 60 30 30X 100 - 3000 iA 45 000200 Au 7S