Hello Aspirants. Welcome to Online Quantitative Aptitude section in AffairsCloud.com. Here we are creating question sample From all topics , which are Important for upcoming IBPS and RRB exams. We have included Some questions that are repeatedly asked in exams !!

**The ratio of salary of A and B one year ago was 3:5 The ratio of their individual salaries of last year and present year are 2:3 and 4:5 respectively. If the total of their present salary is 12900 find A present salary?**

A)1200

B)2200

C)1400

D)5400

###### Answer

**Answer – D) 5400**

Explanation : A new + b new=12900

B new=5/4 bold

B old=5/3A old

A old=2/3A new

A new(1+50/36)=12900

A new= 12900*36/86=5400

**In two mixture the ratio of gold and silver are 2:3 and 5:8 . If 10 kg of first and 26 kg of 2**^{nd}mixture are mixed then find the ratio of gold and silver in new mixture?

A)11/7

B)7/11

C)7/5

D)7/2

###### Answer

**Answer – B) 7/11**

Explanation :

(2/5*10+5/13*26 )

——————— = 7/11

(3/5*10+8/13*26)

**In a wildlife sanctuary cows are more than horse but less than wolves the no. of wolves are equal to hens. The no. of hens are 1/3 the number of deer and rabbit are the highest in number what is the ratio of wolves and deer?**

A)1/6

B)1/5

C)1/4

D)1/3

###### Answer

**Answer – D) 1/3**

**A and B can do a piece of work in 6days B and C in 5 days C and A in 10 days how long will they all work separately ?**

A)15,15/2,15

B)30,15,15/2

C)30,15/2,15

D)15/2, 15, 30

###### Answer

**Answer – C) 30, 15/2, 15**

Explanation :

lcm of 6,5,10 is 30

A alone = 2/(1/6+1/10-1/5)=30days

B alone=2/(1/5+1/6-1/10)=15/2days

C alone=2/(1/5+1/10-1/6)=15days

**In how many ways a person can select one or more of the given 7 cars from a showroom?**

A)126

B)127

C)128

D)129

###### Answer

**Answer – B) 127**

Explanation :2^{7}-1=127

**Two trains of 150m each first crosses each other in opposite direction in 10sec. and when they are in same direction they took 20 sec to do so . Find the speed of fast and slow train?**

A) 7.5m/s , 22.5m

B) 5.7m/s , 22.5m

C) 7.5m/s , 25.2m

D) 7.2m/s , 22.2m

###### Answer

**Answer – A) 7.5m/s , 22.5m/p**

Explanation :

150{1/10-1/20}=7.5m/sec

150{1/10+1/20}=22.5m/sec

**A can cultivate 1/5**^{th}of a ground 3 days and B can cultivate 1/3^{rd}of the same ground in 10 days . A and B work together can cultivate 8/5^{th}of the field in?

A)15

B)10

C)16

D)12

###### Answer

**Answer – C) 16 days**

Explanation :

A’s one day work=1/5*1/3=1/15

B’s=1/30

A+B=1/10

8/5^{th}can be done in (8/5)*10=16days

**Two pipes A and B can fill a tank in 20 and 60 hr respectively. both the pipes are opened to fill the tank but when the tank was 2/3**^{rd}full a leak develop in the tank through which 1/4^{th}water supplied by both pipes goes out. Find the total time taken to fill the tank.

A)14 (2/3)

B)16(3/2)

C)14(3/2)

D)16(2/3)

###### Answer

**Answer – D) 16 (2/3)**

Explanation :

Time taken to full 2/3^{rd}= 2/3{20*60/20+60}= 10hr

Time taken to fill 1/3^{rd}=5hr

Now 1/4^{th}water drain out .

{1-1/4}=3/4 water supplied by A and B

Actual time to fill the remaining 1/3^{rd}water=5*4/3=20/3hr

Total time=10+20/3= 50/3=16 (2/3)

**Ruby invested an amount of Rs. 5,800 for 2 years. At what rate of compound interest will she get an amount of Rs. 6394.5 at the end of two years?**

A)2%pa

B)3%pa

C)4%pa

D)5%pa

###### Answer

**Answer – D) 5%pa**

**20x² – x – 12 = 0**

**20y² + 27y + 9 = 0**

A)x > y

B)x ≥ y

C)x < y

D)x ≤ y

E)x = y or no relation

###### Answer

**Answer – E) x = y or no relation**

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