**DSSSB PRT Maths PYQs**: Practice all the DSSSB PRT Maths previous year questions here. We have provided all the DSSSB PRT Maths PYQs in this article with answers and explainations.

**DSSSB PRT Maths Previous Years Questions**

**Qestion 1. The marked price of an article is Rs 4500. It is sold at successive discount of 20% and x%. If selling price of the article is Rs 3060. What is the value of x?**

- 12%
**15%**- 8%
- 10%

**Ans:** Let the second successive discount is x%.

ATQ,

**4500 x 80% x (100-x)% = 3060**

**Question 2. Find unit digit**

- 9
- 4
**1**- 3

**Ans:**

**Q 3. The sum of digits of the least number which should be added to 13896 to make it perfect cube?**

- 10
- 21
- 8
**19**

**Ans:**

**Question 4. The difference between mean proportion and third proportion of 3 and 12 is-**

- 21/4
- 30
**42**- 24

**Ans:**

**Question 5. The difference between compound interest and simple interest on Rs 4800 for 2 years is 17.28. What is the rate of interest per annum?**

- 8%
**6%**- 10%
- 5%

**Ans:**

**Q 6. The efficiency of A, B, and C are in the ration 4 : 5 : 6. They can together complete a work in 20 days, in how many days A alone will complete the work?**

- 50
- 40
**75**- 60

**Ans:**

**Question 7. Rs 12960 is divided among A, B, and C such that 4 times share of A is equal to 6 times share of B and also equal to 3 times share of C. How much did A get?**

- 5280
- 5760
- 3920
**4320**

**Ans:**

**Question 8. A boat can travel 15 km upstream and 18 km downstream in 4 hours. Also it can go 18 km upstream and 15 km downstream in 4 hours 15 minutes. What is the speed of the boat in still water?**

- 12 km/h
**9 kmp/h**- 8 kmp/h
- 10 kmp/h

Ans:

**Q 9. Reena gave 20% of the money she had to Reeta. Reeta spent 25% of the money received on school fee, 40% on buying books. If she is left with Rs 1680, how much money Reena had initially?**

- 20000
- 22000
- 18000
**24000**

**Ans:**

**Question 10. A train covers 40 km in 45 minutes and next 60 km in 80 minutes. What is its average speed for whole journey in kmp/h?**

**48**- 54
- 50
- 60

**Ans:**

**Question 11. 8 men working 9 hours a day can complete 2 units of work in 20 days. In how many days can 6 men working 10 hours a day to complete 3 unit of work?**

**36**- 24
- 40
- 30

**Ans: 36**

**Q 12. The sides of a triangle are 6cm, 8cm, and 10 cm. Circles of radius 1 cm are down/drawn at each of its vertex. What is the area of the triangle excluding the portion covered by the secrets of the circles? (pi = 3.14)**

- 20.86 sq cm
- 22.95 sq cm
- 21.32 sq cm
**22.43 sq cm**

**Ans:** 22.43 sq cm

**Question 13. By selling 30 articles a person gains cost price of 5 articles. What is his gain percent?**

- 120/7 %
**50/3%**- 100/7 %
- 70/3 %

**Ans:** 50/3 %

**Question 14. The HCF of two numbers is 17 and their product is 4624. What is the sum of their reciprocals?**

- 1/272
- 1/289
- 1/17
**1/16**

**Ans:** 1/16

**Q 15. The weight of students in a class is 45kg, when 4 new students whose weights are 42kg, 36.5kg, 37.5kg, and 40kg are admitted, the average weight decreases by 0.75kg. What is the number if students in the class now?**

**32**- 35
- 30
- 28

**Ans:** 32

**Question 16. The radius of a sphere is increased by 120%. What is percent increase in its volume?**

**964.8 %**- 40.49 %
- 728 %
- 72.8 %

**Ans:** 964.8%

**Question 17. A sum of 1,49,420 is divided among A, B, and C such that 5 times share of A is equal to 3 times share of B which is equal to 2 times share of C. What is the share of A?**

**28,920**- 48,200
- 57,840
- 48,600

Ans: **28,920**

**Q 18. A train without stoppage travels at the speed of 100 km/h and with stoppage it travels with a speed of 70 km/h. How many minutes does the train stop on an average per hour?**

**18**- 20
- 15
- 16

**Ans:** 18

**Question 19. If 6 persons working 8 hours a day earn Rs 8400 in 5 days, then 9 persons working 6 hours a day for 8 days will earn how much money?**

- 14,560
**15,120**- 16,240
- 14,840

Ans: **15,120**

**Question 20. By selling 25 articles a person gains selling price of 5 articles. What is his gain percent?**

**25%**- 20%
- 18%
- 50/3%

**Ans:** 25%

**Q 21. Two vessels A and B contain spirit and water in the ratio 3:5 and 3:2 respectively. Their contents are mixed in the ratio 5:4, what is the ratio of spirit and water in the new mixture?**

- 15:17
- 17:19
- 13:15
**19:21**

**Question 22. The average marks of students in a class are 69.2. The average marks of boys are 65 and that of girls is 72. What is the ration of boys and girls?**

**2:3**- 3:2
- 3:4
- 4:3

**Ans:** 2:3

**Question 23. An article is sold at a certain price. By selling it at 5/6 of that price, one loses 10%. What is his gain percent at the original price?**

- 9%
- 10%
- 12%
**8%**

**Ans: 8%**

#### Q 24. The two numbers are in the ration 5:7 and the product of their HCF and LCM is 4235. What is the sum of the numbers?

- 144
- 108
**132**- 156

**Ans**: **132**

**Question 25. If each edge of a cube is increased by 50%, what is the percent increase in its surface area?**

- 100%
- 150%
**125%**- 250%

**Ans: 125%**

**Question 26. If diagonal of a rectangle is 25 cm and its perimeter is 62 cm, what is its area in sq cm?**

- 300
- 175
- 150
**168**

**Ans: 168**

**Q 27. The numerator of a fraction is increased by 150% and denominator is decreased by 20%, then fraction becomes 15/14. What is the original fraction?**

- 8/25
- 16/45
**12/35**- 12/25

**Ans: 12/35**

**Question 28. A, B, and C alone can do a piece of work in 10 days, 15 days and 12 days respectively. They together started the work after 3 days and, A and B both left. In how many days, C alone will complete the remaining work?**

**3**- 3.5
- 4
- 2

**Ans: 3**

**Question 29. The speed of a boat in still water is 10 km/h. It can go 30 km upstream and return downstream to original point in 8 hours. What is the speed of the stream in km/h.**

**5**- 2
- 4
- 3

**Ans: 5 km/h**

**Q 30. The value of a machine depreciates every year at the rate of 10% per annum. If present value of machine is Rs 8000, what is the percent decrease in its value in three years?**

- 30%
**27.1%**- 27.6%
- 28.8%

**Ans: 27.1%**

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