Mathematical Reasoning

6. A person is given 1 rupee for shooting at the target and if he misses, then he has to give 1 rupee. If he gets 30 rupees for 100 chances then how many chances did he miss?

(A) 45

(B) 25

(C) 40

(D) 35

7. Two horses A and B run at speed of 3:2 ratio in the first lap; during the second lap the ratio differs by 4:7; during the third lap the ratio differs by 8:9. What is the difference in the ratio of speed altogether between the two horses?

(A) 3

(B) 2

(C) 4

(D) 1

8. If it takes two workers, working separately but at the same speed, 2h and 40min to complete a particular task, how long will it take one worker, working at the same speed, to complete the same task alone?

(A) 5h

(B) 1h 20min

(C) 5h 20min

(D) 4h 40min

9. 12 yr old Sami is three times as old as his brother Vinay. How old will Sami be when he is twice as old as Vinay?

(A) 18 yr

(B) 20 yr

(C) 16 yr

(D) 14 yr

10. There were a total of 10 bicycles and tricycles. If the total number of wheels was 24, how many tricycles were there?

(A) 18

(B) 4

(C) 6

(D) 2