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26. If 18 binders bind 900 books in 10 days, how many binders will be reguired to bind 660 books in 12 days ?
A. 55
B. 14
C. 13
D. 11
Explanation: ANSWER : 14
27. If six men working 8 hours a day earn Rs. 840 per week, then 9 men working 6 hours a day will earn per week :
A. Rs. 840
B. Rs. 945
C. Rs. 1620
D. Rs. 1680
Explanation: ANSWER : 945
28. If 4 examiners can examine a certain number of answer books in 8 days by working 5 hours a day; for how many hours a day would 2 examiners have to work in order to examine twice the number of answer books in 20 days ?
A. 6 hours
B. 8 hours
C. 9 hours
D. 7 hours
Explanation: ANSWER : 8 hours
29. If 22.5 metres of a uniform iron rod weighs 85.5 kg., what will be the weight of 6 meters of the same rod ?
A. 22.8 kg.
B. 25.6 kg.
C. 28 kg.
D. none of these
Explanation: ANSWER : 22.8 kg.
30. A contractor undertook to do a certain piece of work in 9 days. He employed certain number of labouters but 6 of them being adsent from the very first day, the rest could finish the work in 15 days. The number of men originally employed were :
A. 12
B. 15
C. 18
D. 24
Explanation: ANSWER : 15
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