Q.6. 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
(A) 44
(B) 45
(C) 46
(D) 45
Q.7. A man bought 13 articles at Rs. 70 each, 15 at Rs. 60 each and 12 at Rs. 65 each. The average price per article is
(A) Rs. 60.25
(B) Rs. 64.75
(C) Rs. 65.75
(D) Rs. 62.25
Q.8. A fruit seller sold big, medium and small sized apples for Rs. 15, Rs. 10, and Rs. 5 respectively. The total number of apples sold were in the ratio 3 : 2 : 5. Find the average cost of an apple.
(A) 8
(B) 10
(C) 9
(D) 7
Q.9. A man purchased 7 bags of rice at the rate of Rs. 800 each, 8 bags of rice at Rs. 1000 each and 5 bag of rice at the rate of Rs. 1200 each. What is the average cost of one bag of rice?
(A) Rs. 1000
(B) Rs. 980
(C) Rs. 1120
(D) Rs. 1050
Q.10. Three Science classes A, B and C take a Life Science test. The average score of class B is 76. The average score of class A and B is 79 and average score of class B and C is 81, Then the average score of class A, B and C is
(A) 80
(B) 81
(C) 80.5
(D) 81.5
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