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.Management Sciences
Category: Arithmetic Mcqs
The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers?
0
A. 2
B. 5
C. 8
D. Cannot be determined
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The average of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 14 students?
A. 15 years
B. 17 years
C. 18 years
D. 19 years
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Rs. 6000 is lent out in two parts. One part is lent at 7% p.a simple interest and the other is lent at 10% p.a simple interest. The total interest at the end of one year was Rs. 450. Find the ratio of the amounts lent at the lower rate and higher rate of interest?
A. 5 : 1
B. 4 : 1
C. 3 : 2
D. 2 : 1
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A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
A. 28 4/7 years
B. 31 5/7 years
C. 32 1/7 years
D. None of these
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