# Must Do Quantitative Aptitude for IBPS RRB PO and Clerk Pre 2017

**Dear Students,**

**Quantitative Aptitude Questions for IBPS Exam**

Today we have been including Arithmetic and Quadratic Equations. This is the Quantitative Aptitude Questions and you should try to do it within 14-15 Minutes. If you fail to complete it in the stipulated time, then try again with full force. These quantitative aptitude questions are very important from exam point of view like IBPS RRB Exam, IBPS PO and IBPS Clerk.

**Q1. How many different letter arrangements can be made from the letter of the word EXTRA in such a way that the vowels are always together?**

(a) 48

(b) 60

(c) 40

(d) 30

(e) None of these

**S1. Ans.(a)**

**Sol.**

No. of vowels in the given word = 2(E, A)

∴ Required no. of ways = 4! × 2!

= 48

**Q2. In how many ways can a committee of 5 be made out 6 men and 4 women containing atleast one woman?**

(a) 246

(b) 222

(c) 186

(d) 286

(e) None of these

**S2. Ans.(a)**

**Sol**.

6 men, 4W

Required no. of ways

= (4M & 1W) or (3M & 2W) or (2M & 3W) or (1M & 4W)

= 6C4 × 4C1 + 6C3 × 4C2 + 6C2 ×4C3 + 6C1 × 4C4

=(6×5)/2×4+(6×5×4)/(3×2)×(4×3)/2+(6×5)/2×4+6×1

= 60 + 20 ×6 + 15 ×4 + 6

= 246

**Q3. Everybody in a room shakes hands with every else. If total number of hand-shaken is 66, then number of persons in the room is**

(a) 11

(b) 12

(c) 13

(d) 14

(e) None of these

**S3. Ans.(b)**

**Sol.**

Total no. of hand shakes = n_(c_2 )=66

n!/(n-2)!.2!=66

n^2-n-132=0

(n-12)(n+11)=0

n=12

**Q4. Two dice are thrown simultaneously. The probability of obtaining a total score of seven is**

(a) 1/6

(b) 1/3

(c) 2/7

(d) 5/6

(e) None of these

**S4. Ans.(a)**

**Sol.**

Favourable conditions are (6, 1), (5, 2), (4, 3), (3, 4), (2, 5), (1, 6)

Total possible cases are 6 × 6 = 36

∴ Required probability=(Favourable cases)/(Total possible cases)

=6/36=1/6

**Q5. Four balls are drawn at random from a bag containing 5 white, 4 green and 3 black balls. The probability that exactly two of them are white is**

(a) 14/33

(b) 7/16

(c) 18/33

(d) 9/16

(e) None of these

**Directions (6-10): In the following questions two equations in x and y are given and Solve these equations and give answer**

(a) If x>y

(b) If x<y

(c) If x≥y

(d) (If x≤y

(e) If x=y or relation cannot be established

**Q11. A metal cube of edge 12 cm is melted and formed into three smaller cubes. If the edges of two smaller cubes are 6 cm and 8 cm, then find the edge of the third smaller cube.**

(a) 10 cm

(b) 14 cm

(c) 12 cm

(d) 16 cm

(e) None of these

**Q12. If the volume of a sphere is divided by its surface area, the result is 27 cm. The radius of the sphere is**

(a) 9 cm

(b) 27 cm

(c) 81 cm

(d) 243 cm

(e) None of these

**Q13. A cube of 384 cm² surface area is melted to make x number of small cubes each of 96 cm² surface area. The value of x is**

(a) 80,000

(b) 8

(c) 8,000

(d) 800

(e) None of these

**Q14. The capacity of a cylindrical tank is 246.4 litres. If the height is 4 metres, what is the diameter of the base?**

**( 1 l=1000cubic meter)**

(a) 1.4 m

(b) 2.8 m

(c) 14 m

(d)0.28 m

(e) None of these

**Q15. The length of a cold storage is double its breadth. Its height is 3 metres. The area of its four walls (including the doors) is 108 m². Find its volume.**

(a) 215 m³

(b) 216 m³

(c) 217 m³

(d) 218 m³

(e) None of these

Nice questions..pls upload more no. Of questions & its solutions..

ReplyDeleteSir in the 15 no. question area of 4 walls i have read from book 2(lb+bh+lh)... but in the answer it is only 2(bh+lh).... is it right... plz explain

ReplyDeletelb means floor and ceiling. Watch properly the room you are sitting. Use common sense before studying formula.

ReplyDelete