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.Management Sciences
Category: Ratio and Proportion
A class has 90 students. If the ratio of boys and girls is 7:8, find the number of boys in the class.
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A. 48
B. 42
C. 60
D. 70
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Divide Rs.2000 into two shares in the ratio 3:2.
A. Rs.1200,Rs.800
B. Rs.800,Rs.1200
C. Rs.1500,Rs.500
D. Rs.1100, Rs.900
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Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is :__________?
A. 2 : 5
B. 3 : 5
C. 4 : 5
D. 6 : 7
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Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?
A. 2 : 3 : 4
B. 6 : 7 : 8
C. 6 : 8 : 9
D. None of these
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