| | 1 . | Directions (Q. 1-5): From a class total 360 students appeared in an exam. Three fourth of these are boys. 40 % boys failed in the exam, two third of the girls are failed in the exam and remaining passed :
What is the ratio of the total number of girls to the number of boys who failed in the exam ? |
A. 4:9 | B. 9:5 | C. 5:6 | D. none of these | | | 2 . | What is the sum of the number of boys who failed and number of girls who passed in the exam ? |
A. 148 | B. 158 | C. 128 | D. 138 | | | 3 . | What is the difference between the number of boys who are passed and number of girls who are failed ? |
A. 102 | B. 202 | C. 52 | D. none of these | | | 4 . | What is the ratio of the total number of boys and girls who are passed to the number of boys and girls who are failed ? |
A. 7:8 | B. 8:7 | C. 9:17 | D. none of these | | | 5 . | Total number of boys passed is approximately what percent of total number of girls in the class ? |
A. 60% | B. 120% | C. 150% | D. 180% | | | 6 . | Direction (Q. 6-10): A bag contains 4 red, 5 brown and 6 white balls. Three balls are drawn randomly :
What is the probability that balls drawn contains exactly two red balls ? |
A. $54\over145$ | B. $66\over455$ | C. $46\over105$ | D. None of these | | | 7 . | What is the probability that the balls drawn contains no brown ball ? |
A. $11\over65$ | B. $31\over91$ | C. $24\over91$ | D. none of these | | | 8 . | What is the probability that the balls drawn are not of the same colour ? |
A. $34\over455$ | B. $31\over105$ | C. $74\over105$ | D. $421\over455$ | | | 9 . | If two balls are drawn randomly then what is the probability that both the balls are of same colour ? |
A. $31\over105$ | B. $74\over105$ | C. $34\over455$ | D. none of these | | | 10 . | What is the probability that the three balls drawn are of different colour ? |
A. $21\over91$ | B. $31\over105$ | C. $24\over105$ | D. $24\over91$ | | | | |
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