Percentage

Quantitative Aptitude (MTS)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

55% of the cadidates in an examination were boys. 60% of the boys and 75% of the girl passed,and 315 girls failed.

This questions was previously asked in

SSC MTS 12th October 2021 Shift-3

626

632

616

646

Correct option 3: 616

Given : 55% of the candidates in an examination were boys 60% of the boys and 75% of the girls passed 315 girls failed

Solution:

Let total number of candidates in the exam be 100N.

Number of boys in the exam = 55N

Number of girls = 45N

Now, According to the question, 75% of the girls passed hence 25% of girls failed.

So, 45N x 1/4 = 315

45N = 1260

N = 28

So, 55N = 28 x 55 Now, boys who failed = 28 x 55 x 2/5

28 x 22 = 616 :. The number of boys who failed were 616