**Q1. If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is A?**

(a) 10

(b) 15

(c) 5

(d) 20

**Q2. A gun is fired at a distance of 1.7 km from Ram and he hears the sound after 25 seconds. The speed of sound in meter per second is:**

(a) 60

(b) 62

(c) 64

(d) 68

**Q3. A sum of Rs. 3000 yields an interest of Rs. 1080 at 12% per annum simple interest in how many years?**

(a) 4 Years

(b) 3 Years

(c) 5 years

(d) 2 1/2 years

**Q4. The area of the largest triangle that can be inscribed in a semicircle of radius 6m is:**

(a) 36 m2

(b) 72 m2

(c) 18 m2

(d) 12 m2

**Q5. Three numbers are in the ratio 5:7:12. If the sum of the first and the third is greater than the second by 50.The sum of the three numbers is:**

(a) 125

(b) 120

(c) 95

(d) 85

**Q6. If the income of Mohan is 150% higher than Mahesh, then by what percent the income of Mahesh is less than Mohan?**

(a) 40%

(b) 50%

(c) 60%

(d) 45%

**Q7. If ∆PQR and ∆LMN are similar and 3PQ = LM and MN = 9 cm, then QR is equal to:**

(a) 12 cm

(b) 6 cm

(c) 9 cm

(d) 3 cm

**Q8. Possible length of the three sides of a triangle are:-**

(a) 2 cm, 3 cm, 6 cm

(b) 3 cm, 4 cm, 5 cm

(c) 2.5 cm, 3.5 cm, 6 cm

(d) 4 cm, 4 cm, 9 cm

**Q9. A can do a work in 12 days while B can do it in 15 days. They undertake to complete it together for Rs. 450. what will be the share of A in this amount of money?**

(a) Rs. 200

(b) Rs. 240

(c) Rs. 250

(d) Rs. 300

**Q10. 36 men together can build a wall 140 m long in 21 days; the number of men working at the same rate required to build the same wall in 14 days is?**

(a) 54

(b) 48

(c) 36

(d) 18

**Solutions:**

**Important Links for RRB NTPC Recruitment 2019
RRB NTPC Admit Card
RRB NTPC Previous year Cut Off | 1st & 2nd Stage Examination
RRB NTPC Recruitment 2019: Check FAQs
RRB NTPC Exam Pattern 2019 – Check Here
RRB NTPC Previous Year Exam Analysis
RRB NTPC Exam Syllabus**