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__QUANT SET 17 FOR RRB PO & CLERK PRE-2020__

**RRB Clerk and RRB PO Prelims exam are going to be held in the upcoming months. We have already provided you with the PDFs of many topics of Quantitative Aptitude like Simplification/Approximation, Number Series,datainterpretation.important Arithmetic questions to prepare for RRB Clerk and PO Pre exam. Practicing these questions will help you to know about the level of the questions. To increase your speed and accuracy, enhance your calculations.**

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** **__START QUIZ__

__START QUIZ__

**Directions (1-5): The following pie-chart and table show the distribution of total number of seats of ALP and Technician in six different RRB divisions (in degrees) and ratio of ALP and Technician seats in each given RRB divisions respectively. Study the graphs carefully to answer the following questions.**

**Total ALP and technician seats = 60,000**

**Q1. What is the average no. of ALP seats in Allahabad, Kanpur and Lucknow divisions together?**

(a) 5600

(b) 6500

(c) 4500

(d) 6000

(e) 7500

**Q2. Total no. of technician seats in Jhansi is how much percent more or less than the total no. of technician seats in Kanpur division?**

(a) 70%

(b) 80%

(c) 85%

(d) 75%

(e) 65%

**Q3. What is the total no. of ALP and Technician seats in Kanpur, Agra and Gorakhpur together?**

(a) 29,600

(b) 29,500

(c) 29,400

(d) 29,000

(e) 29,900

**Q4. If no. of ALP and technician seats in Jhansi is interchanged, then what is the percentage change in ALP seats with respect to the total number of ALP and technician seats in the same division?**

(a) 50% less

(b) 50% more

(c) can’t be determined

(d) 60% more

(e) 60% less

**Q5. What is the difference between total no. of ALP seats in Allahabad and Gorakhpur?**

(a) 4500

(b) 3000

(c) 2800

(d) 2400

(e) 4800

**Q6.**

**The average weight of 3 men A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replaces A, then average weight of B, C, D and E becomes 79 kg the weight of A is:**

(a) 70 kg

(b) 72 kg

(c) 74 kg

(d) 80 kg

(e) None of these

**Q7.**

**A retailer purchase a mobile at a discount of 15% and sells it for**

**Rs.**

**3910. In the bargain he makes a profit of 15%. How much is the discount which he got from the whole sale?**

(a) Rs.
540

(b) Rs.
580

(c) Rs.
600

(d) Rs.
520

(e) None of these

**Q8.**

**The wheat sold by a shopkeeper contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kg of wheat so that percentage of low quality wheat becomes 5%?**

(a) 50 kg

(b) 150 kg

(c) 135 kg

(d) 75 kg

(e) None of these

**Q9.**

**Arun contains 6 red, 4 blue and 2 green balls. 3 balls are picked at random, find the probability that all the 3 balls are of same colour?**

(a) 5/56

(b) 12/57

(c) 7/55

(d) 6/55

(e) None of these

**Q10.**

**2 candles of the same height are lighted at the same time. The first is to be consumed in 5 hours and seconds in 4 hours. Assuming that they burn at constants rates, in how many hours their height will be in ratio 3: 2?**

(a) 20/7

(b) 18/5

(c) 19/9

(d) 20/9

(e) None of these

__Solutions__**S1. Ans. (b)**

**Sol.**

**S2. Ans. (a)**

**Sol.**

**S3. Ans. (d)**

**Sol.**

**S4. Ans. (a)**

**Sol.**

**S5. Ans. (b)**

**Sol.**

**S6. Ans. (e)**

**Sol.**A + B + C = 84 × 3 = 252

A + B + C + D = 80 × 4 = 320

Age of D = 320 – 252 = 68

Age of E = 71

B + C + D + E = 316

B + C = 316 – (68 + 71)

B + C = 177

Age of A = 252 – 177 =
75 years

**S7. Ans. (c)**

**Sol.**C.P. to the retailer = 3910 × 100/115 = 3400

But it is at a
discount of 15%, M.P. = 3400 × 100/85 = 4000

Total discount = 4000 –
3400 = Rs. 600.

**S8. Ans. (b)**

**Sol.**Initially low quality wheat = 10% of 150 = 15kg

High quality wheat = 150 – 15 = 135 kg

15 kg of low quality wheat will be 5% of
the final quantity of wheat

Final quantity of
wheat = 100 × 15 = 300 kg

Quantity of high quality wheat = 300 – 15 =
285 kg

High quality wheat
added = 285 – 135 = 150kg

**S9. Ans. (d)**

**Sol.**

**S10. Ans. (a)**

**Sol.**