ALLIGATION MCQ SET 7
1. The total number of students in section A and B of a class is 110 . The number of students in section A is 10 more than that of section B . The average score of the students in B , in a test is 20% more than that of students in A . If the average score of all the students in the class is 72 , then what is the average score of the students in A ?
(a) 66
(b) 68
(c) 63
(d) 70
Answer: A
2. The total number of students in class A and B is 96 . The number of students in A is 40% more than that in B . The average weight (in kg) of the students in B is 50% more than that of the students in A . If the average weight of all the students in A and B taken together is 58 kg , then what is the average weight of the students in B ?
(a) 72 kg
(b) 60 kg
(c) 48 kg
(d) 66 kg
Answer: A
3. There are 96 students in a class , out of which the number of girls is 40% more than that of the boys . The average score in mathematics of the boys is 40% more than the average score of girls . If the average score in mathematics of all the students is 63 , then what is the average score of the girls in mathematics ?
(a) 51
(b) 54
(c) 55
(d) 57
Answer: B
4. In a class , the number oof girls is 60% more than that of boys .ย The average weight of the boys is 2.6 kg more than that of girls . If the average weight of all the boys and girls is 50 kg , then find the average weight (in kg) of girls?
(a) 48.8
(b) 49.2
(c) 49
(d) 48
Answer: C
5. In a class of 100 students , the average weight is 30 kg . If the average weight of the girls is 24 kg and that of the boys is 32 kg , then what is the number of girls in the class ?
(a) 25
(b) 26
(c) 27
(d) 28
Answer: A
6. Rita buys 5 sarees at an average cost of Rs.2250 . If she buys three more sarees at an average cost of Rs.2750 , what will be the average (in Rs.) of all the sarees she buys ?
(a) 2437.5
(b) 2500
(c) 2450
(d) 2332.5
Answer: A
7. Average run per wicket of a bowler is 11.5 . In his next inning bowler took 5 wickets and conceded 40 runs , thereby he reduced his bowling average by 0.5 . Find the total number of wickets .
(a) 25
(b) 35
(c) 24
(d) 23
ย Answer: B
8. A cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreases his average by 0.4 . Find total runs scored by him?
(a) 2500
(b) 1050
(c) 2400
(d) 1080
Answer: D
9. If a man sells a pen at 21% profit and pencil at 48% profit , he earns Rs.1890 as profit . But if he sells the pen at 21/4% profit and pencil at 15% loss then he bears no profit no less . Find the cost price of the pen and pencil ?
(a) 10000 , 4200
(b) 4000 , 1400
(c) 5000 , 1750
(d) 6000 , 2100
Answer: C
10. A shopkeeper sells 3 itemsย , Y and Z incurs a loss of 21% , 19% and 3% respectively . The overall loss % on selling X and Y items is 20.66% and that of Y and Z items is 11% . Find the overall loss % on selling three items?
(a) 13.12%
(b) 16.16%
(c) 18.14%
(d) 19.27%
Answer: C
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