Numerical Aptitude --- 2

1. √1.5625 = ?
1) 125
2) 12.5
3) 1.05
4) 1.25
5) None of these

2. What will be the compound interest on a sum of Rs. 25,000 after three years at the rate of 12% pa.
1) Rs. 10123.20
2) Rs. 9000.30
3) Rs. 10483.20
4) Rs. 9720
5) None of these

3. In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?
1) 63
2) 45
3) 126
4) 90
5) None of these

4. In how many different ways can the letters of the word CORPORATION be arranged in such a way that the vowels always come together?
1) 840
2) 86400
3) 8400
4) 1440
5) None of these

5. Present ages of Sima and Nagesh are in the respective ratio of 5:7. Five years hence the ratio of their ages becomes 3:4 respectively. What is Nagesh's present age in years?
1) 25
2) 40
3) 30
4) Cannot be determined
5) None of these

Directions (6 - 10): Answer these questions on the basis of the information given below.
In a class of 80 students the girls and the boys are in the ratio of 3:5. The students can speak only Hindi or only English or both Hindi and English. The number of boys and the number of girls who can speak only Hindi is equal and each of them is 40% of the total number of girls. 10% of the girls can speak both the languages and 58% of the boys can speak only English.

6. How many girls can speak only English?
1) 12
2) 29
3) 18
4) 15
5) None of these

7. In all how many boys can speak Hindi?
1) 12
2) 9
3) 24
4) Data inadequate
5) None

8. What percentage of all the students (boys and girls together) can speak only Hindi?
1) 24
2) 40
3) 50
4) 30
5) None of these

9. In all how many students (boys and girls together) can speak both the languages?
1) 15
2) 12
3) 9
4) 29
5) None of these

10. How many boys can speak either only Hindi or only English?
1) 25
2) 38
3) 41
4) 29
5) None of these






Key:

1. 2
2. 1
3. 1
4. 5
5. 5
6. 4
7. 5
8. 4
9. 2
10. 3