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Ratio

1.  If P: Q = 8: 15 and Q: R = 3: 2 then find P: Q: R
A. 8 : 15 : 7B. 7 : 15 : 8
C. 8 : 15 : 10D. 10 : 15 : 8

2.  What will be the duplicate ratio of 2: 7 ?
A. 4 : 49B. 49 : 4
C. 4 : 14D. 8 : 343

3.  In a test match, average of run scored by 5 players is 73. If run score by four players Are 125, 80, 52, and 20, respectively, how many run did the 5th player score ?
A. 125B. 343 : 125
C. 344 :125D. 343 : 126

4.  If A : B = 3 : 4 and B : C = 8 :9 than find the value of A : C : B
A. 3 : 4 : 5B. 1 : 2 : 3
C. 7 : 12 : 17D. 6 : 8 : 9

5.  The total number of students in a school is 2140. If the number of girls in the School is 1200, what is the ratio the total number of boys to the number of girls in the school ?
A. 26 : 25B. 47 : 60
C. 18 : 13D. 31 : 79


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