Page 1 :
> Success Review Classes, , (A COMPLETE CLASS OF REASONING. MATHS & DATA INTERPRETATION, , By: Susin Sin 7 27 79 31931/70330090, , , , Average - I, , , , Type -I, , 1. A student was asked to find the arithmetic mean of the following 12 numbers :, , , , (Wa Tacarell at fered (Ae Te 12 UEAHt HT ALA Bet Hel & Few Her AAM|), 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 andx, , He found the mean to be 12. The value of x will be:, , (Seer ACT 12 Wle FHA. x HT AleT BAT He), , (13 (2)7 (3) 17 (4) 31 (5) None of these, , 2. The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68., The average marks of all 17 students was :, , (WH otter F 8 facarflat cant sthete wicdin 51 F a2 9 Hea Brat Gant sheet wIcareH 68 S| Beit 17 orat, ar aitaa ocaie fecal 8?), (1) 59 (2) 59.5 (3) 60 (4) 60.5 (5) None of these, , 3. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average, marks of all the students is, , (aie 55, 60 aa 45 oral & chet dat ar 3ihkea Zieh HA: 50, 55 ATO el, al Git orat aT sia 3iw ala, a), , (1) 54.68 (2) 53.33 (3) 55 (4) 68 (5) None of these, , 4. The average of 30 results is 20 and the average of other 20 results is 30. What is the average of all the results, 2, , (aie 30 TRorat ar sikea 20 ¢ aa 20 TRoTar ar sik 30 8, at ait oRomat ar sthea facet $7), , , , , , Subir Sir (Reasoning & Data Interpretation), Youtube Channel: REDI Study Point, Call : 7033009080 / 7277931931 Page 1

Page 2 :
(1) 24 (2) 48 (3) 25 (4) 50 (5) None of these, , 5. If the average weight of 6 students is 50 kg; that of 2 students is 51 kg; and that of other 2 students is 55 kg;, then the average weight of all students is, , , , (aie a: orat ar 3ihkea dat 50 Prottara 8, at oral ar sihkae Garet 51 rotary f AM 3g | oral wr sitet, , , , Foret 55 feholtaret & ct att oral cpr Hot shel dott fect 8?), , (1) 61 kg (2) 51.5 kg (3) 52 kg (4) 51.2 kg (5) None of these, , 6. The average of 10 numbers is 7. If each number is multiplied by 12, then the average of the new set of, numbers will be, , (10 Beast ar shee 7 8] aie weeen Mea Ht 12 S TOT HA Se &, al Sa WHR set av Ae aT had Fa, ear), (1)7 (2) 19 (3) 82 (4) 84 (5) None of these, , 7. The average income of 40 persons is Rs. 4200 and that of another 35 persons is Rs. 4000. The average, income of the whole group is :, , (40 cafeaat fr stheae He &. 4200 8 ae Hea 35 cafecat ar siya &. 4000 8 at qt Bag ar athe ait, Fa 8?), , (1) Rs. 4100 (2) Rs. 4106; (3) Rs. 4106- (4) Rs. 41082 (5) None of these, , 8. The average weight of five persons sitting in a boat is 38 kg. The average weight of the boat and the persons, sitting in the boat is 52kg. What is the weight of the boat ?, , , , (GH ae OT 8S Ore cafeaalt ar heat Gatet 38 Proll S| Ara AAMT SH ata aT Zhe Tate 52 Pelt B| Ara HT, aatet Pet 8?), (1) 228 kg (2) 122 kg (3) 232 kg (4) 242 ke (5) None of these, , 9. The average marks of 32 boys of section A of class X is 60 whereas the average marks of 40 boys of section, B of class X is 33. The average marks for both the sections combined together is, , (Pa X Veet AH 32 ASHI Hr haa Bish 60 B stale Ha X h Peele BH 40 Oral aT Zita Fis 33 Z|, Breit Dererat Ht Frearnx 3ikaar 31h Pact 8?), , (1) 44 (2) 45 (3) 46; (4) 45, (5) None of these, , , , , , , , Subir Sir (Reasoning & Data Interpretation), Youtube Channel: REDI Study Point, Call : 7033009080 / 7277931931 Page 2

Page 4 :
(1) 16 (2) 15 (3) 14 (413 > (5) None of these, , 16. The average monthly expenditure of a family is Rs. 2,200 during first three months, Rs. 2,550 during next, four months and Rs. 3,120 during last five months of the year. If the total savings during the year was Rs. 1,260,, what is the average monthly income ?, , (Gh URAN ar Ugo chet Hele ar site Aree Ga &. 2200 &, 3tetel UN Aelet Hr site Ga &. 2550 % we, Sifeat ota agra ar sik we F. 3120 F] Bie YX ae H See Tua &. 1260 F, at sae hee Anse ST, Fa 8?), , (1) Rs. 1,260 (2) Rs. 1,280 (3) Rs. 2,805 (4) Rs. 2,850 (5) None of these, , 17. 4 boys and 3 girls spent Rs. 120 on the average, of which boys spent Rs. 150 on the average. Then the, average amount spent by the girls is, , (4 as& aa 3 astra sia &. 120 we axe ¢ frat ass sihea ©. 150 we axe 8] asfeat qanr fear, aq sited Ge Fa 8?), (1) Rs. 80 (2) Rs. 60 (3) Rs. 90 (4) Rs. 100 (5) None of these, , 18. Six tables and twelve chairs were bought for Rs. 7,800. If the average price of a table is Rs. 750, then the, average price of a chair would be, , (GB: Caet TM INE HMA F. 7800 A Ual sh F] Ale aor ar the Fer B. 750 et, at HRA ar sth, Fer Fe Hy), (1) Rs. 250 (2) Rs. 275 (3) Rs. 150 (4) Rs. 175 (5) None of these, , 19. There are two groups A and B of a class, consisting of 42 and 28 students respectively. If the average weight, of group A is 25 kg and that of group B is 40 kg, find the average weight of the whole class., , (We Hen F at TAG A AaB & fol HHI: 42 AA 28 BA 8] Ale AAS A HI Hae aotet 25 feet aa AAS, Bat shee aotet 40 feet Bt at OX HAM ar kA ater Alc HL?), , (1) 69 kg (2) 31 kg (3) 70 kg (4) 30 kg (5) None of these, , 20. The average monthly salary of all the employees in an industry is Rs. 12,000. The average salary of male, employees is Rs. 15,000 and that of female employees is Rs. 8,000. What is the ratio of male employees to, female employees ?, , , , , , Subir Sir (Reasoning & Data Interpretation), Youtube Channel: REDI Study Point, Call : 7033009080 / 7277931931 Page 4