## Pratiyogita Mantra is teaching live on Unacademy Plus

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

DON'T FORGET TO PRESS HIT LIKE RATE FOLLOW I ASK YOUR DOUBTS ENROLL/SAVE |COMMENTS

AVERAGE TYPE 6 ERROR/CORRECTION

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

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

48 84 -02 2 3612

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

100 40 Ru 53830 39 30 3 l00

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

538

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

64 46 18 24 28 82 92 128 2 3

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

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