# Quantitative Aptitude Practice Questions for IBPS Clerk – Set 11

Quantitative Aptitude Practice Questions for IBPS Clerk – Set 11
1. Ramesh gifted a Five Star choclate box to Suresh. The length, breadth and height of this box are in the ratio of 6 : 5 : 4 and its whole surface area is 66600 cm2. What is the volume of the box?
a) √7500002
b) √8100002
c) √7800002
d) √8400002
e) None of these
2. Vivek took a loan of ₹ 27,000 from Vishal. It was agreed that for the first three years the rate of interest charged would be at 10% simple interest per annum and from the fourth year onwards it will be 8% at compound interest (compounded annually). Vivek did not pay anything until the end of the fifth year. How much would he have to repay if he clears the entire amount only at the end of the fifth year? (in Rupees)
a) ₹ 49,480.32
b) ₹ 40,940.64
c) ₹ 49,440
d) ₹ 54,450.63
e) None of these
3. Narendra opened a new supermarket investing Rs. 40000. He invested additional amount of Rs. 10000 every year. After 2 years his cousin Modi joined him with amount of Rs. 85000. Thereafter, Modi did not invest any additional amount. On completion of 4 years from the opening of supermarket, they earned an amount of Rs. 97500, what will be Narendra's share in the earning?
a) 55000
b) 66000
c) 75000
d) 45000
e) 34200
4. In the year 2016, the number of personnel in a Walmart store decreased in the ratio of 8 : 7 and salary of personnel increased in the ratio of 5 : 6. Find how the total salary given to the each of the personnel varies and in what ratio?
a) 19 : 20, will be increased
b) 20 : 19, will be decreased
c) 19 : 21, will be increased
d) 21 : 20, will be decreased
e) None of these
5. In a tour de france event, Armstrong rides his bicycle 21 km against the wind and another 42 km with the wind in total 13 hours. He also rides 6 km against the wind and 14 km with the wind in 4 hours. What is the speed of Armstrong when the wind is not blowing?
a) 10kmph
b) 7.5kmph
c) 5.5kmph
d) 7kmph
e) 5kmph
6. A cunning dairy owner has a habit of mixing water with milk. He contains 50 litres of milk in a big jar. One day he takes 10 litres of milk out and replaces it with an equal quantity of water. If he once again takes 15 litres out from new mixture, what is the final quantity of milk left in the jar?
a) 28litres
b) 30litres
c) 25.6litres
d) 24litres
e) None of these
7. Avul, Pakir and Jainal are hired to do a piece of work for ₹ 252. Avul and Jainal are supposed to finish 21/27 of the work together. The amount that shall be paid to Pakir is:
a) ₹ 68
b) ₹ 56
c) ₹ 74
d) ₹ 92
e) None of these
8. Two mobile phones were purchased at the same price one was sold at a profit of 20% and another was sold at a price which was Rs. 1152 less than the price at which the first was sold. If the overall profit earned by selling both the mobile phones was 2%, what was the cost price of each of the mobile phones?
a) ₹ 3000
b) ₹ 3200
c) ₹ 4800
d) ₹ 4000
e) ₹ 5000
9. A bag contains 4 Iphone mobiles, 3 Microsoft mobiles and 6 Vivo mobile. 8 mobiles are drawn at random. What is the probability that the drawn mobiles has no Iphone mobile?
a) 1/3
b) 2/5
c) 142/143
d) 9/1426
e) 1/143
10. My grandfather was 9 times older than me 16 years ago. He will be 3 times of my age 8 years from now. Eight years ago, the ratio of my age to that of my grandfather was
a) 3 : 8
b) 2 : 5
c) 1 : 2
d) 1 : 5
e) None of these
11. In 30 litres of milk and water,the ratio of milk and water is 7:3,Find the quantity of water to be added in the mixture in order to make this ratio 3:7
a) 30liters
b) 35liters
c) 40liters
d) 45liters
e) 50liters
12. A,B and C enter into a partnership.A invests Rs.4000 for the whole year,B puts in the rs.6000 at the first and increasing to Rs.8000 at the end of 4 months ,whilst C puts in at first Rs.8000 but withdraws Rs.2000 at the end of 9 months.Find the profit of A at the end of year,if the total profit is Rs.16950
a) Rs.3600
b) Rs.6600
c) Rs.6750
d) Rs.7300
e) Rs.7500
13. The sum of the ages of a mother and her daughter is 50 years.Also 5 years ago,the mother’s age was 7 times the age of the daughter.What are the Present ages of mother and the daughter?
a) 30, 20
b) 35, 15
c) 40, 10
d) 45, 5
e) None of these
14. The profit earned by selling an article fro Rs.600 is equal to the loss incurred when the same article is sold for Rs.400.What should be the sale price of the article for making 25 percent profit?
a) 500
b) 575
c) 625
d) 700
e) None of these
15. A pipe can empty a tank in 15 hrs and another pipe can empty it in 10 hours.If both the pipes are opened simultaneously. Find the time in which a full tank is emptied?
a) 5hrs
b) 6hrs
c) 7hrs
d) 8hrs
e) None of these

Solutions:
1. B) Let length = 6x, breadth = 5x, height = 4x
According to the question,
2(lb + bh + lh) = 66600
2(6x × 5x + 5x × 4x + 6x × 4x) = 66600
148x2 = 66600  x2 = 66600/148 = 450
x = √450 = √(2 × 225) = 15√2
Volume of the box = (l × b × h) = (90√2 × 75√2 × 60√2)
=  (2 × 90 × 75 × 60√2) =  (13500 × 60√2) = 810000√2 cm3
2. B) The SI for first three years = (27000 × 10 × 3)/100 = 8100
Amount after three years 27000 + 8100 = ₹ 35100
Now, on this amount he pays 8% interest CI for 2 years
Effective compound interest% for 2 years (applying Net% Effect formula)
Net % effect = x + y + (xy/100)
Here, x = y = 8%
Putting the values, we get
Rate% of CI = 8 + 8 + (8 × 8)/100 = 16.64%
Amount = 16.64% of 35100  +  35100  = 5840.64 + 35100 = 40,940.64/-
3. A) Narendra`s share : Modi`s share
= [40000 × 1 + 50000 × 1 + 60000 × 1 + 70000 × 1 ] : (85000 × 2) = 220000 : 170000 = 22 : 17
Narendra's share = 22/39 × 97500 = 55000
4. E) Let the number of personnel in the beginning = 8K
And total number of personnel at present = 7K
Let salary of an personnel in the beginning = 5L
And salary of an personnel at present = 6L
Total salary in the beginning = 8K × 5L = 40 KL
And total salary at present = 7K × 6L = 42 KL
Required ratio = 40 KL : 42 KL = 20 : 21
Clearly, the salary will be increased.
5. E) Let Armstrong's speed against the wind be x kmph and with the wind be y kmph.
Then, 21/x + 42/y = 13 ….. (i)
Again, 6/x + 14/y = 4 ….. (ii)
Now, suppose 1/x = u and 1/y = v
Then, 21u + 42v = 13        ...(iii)
6u + 14v =  4            ...(iv)
Solving eqn. (iii) and (iv), we get
u = 1/3 = 1/x => x = 3kmph
then 6/3 + 14/y = 4 => y = 14/2 => y = 7kmph
Therefore, speed of Armstrong when wind is not blowing = (3 + 7)/2 = 5kmph
6. A) Milk in the jar = 50 L
After first operation: 50 – 10 = 40 litres of milk
Now, 10 litres of water is added to the milk.
Then, quantity of the new mixture = 40 + 10 = 50 litres
Again, in new mixture the ratio of milk to water = 40 : 10 = 4 : 1
Now, 15 litres mixture is drawn out.
Then, quantity of milk in 15 litres of mixture = 15 × 4/5 = 12 litres
Remaining milk in jar = 40 – 12 = 28 litres
7. B) Work done by Pakir = 1 – 21/27 = 6/27
(Avul + Jainal) Pakir = 21/27 : 6/27 = 21 : 6
Now, Sum of the terms of ratio = 21 + 6 = 27
Pakir's share = 6/27 × 252 = ₹ 56
8. B) Let the cost price = 100/-
SP of 1st mobile at the profit of 20% = 120/-
Overall profit at 2% profit = 102% of 200 = 204/-
SP of 2nd mobile = 204 – 120 = 84/-
Difference between SP1 & SP2 = 120 – 84 = 36/-
Putting the value in proportion,
Difference between selling prices : Cost Price :: Actual difference between selling prices : Actual price
36 : 100 : : 1152 : x
x = (100 × 1152)/36 = 3200
9. E) 8 mobiles can be drawn out of 13 mobiles in 13C8 ways.
As given in the question above that we are not supposed to draw any Iphone mobile.
We have to select 8 mobiles out of the remaining 9 mobile phones.
This can be done in 9C8 ways = 9C8/13C8 = 9/1287 = 1/143
10. D) Let my age 16 years ago be x years.
My grandfather's age 16 years ago = 9x years
My present age = (x + 16)
and my grand father's present age = (9x + 16)
As per the second scenario, 8 years hence
(9x + 16 + 8) = 3(x + 16 + 8)
9x + 24 = 3x + 48 + 24
9x + 24 = 3x + 72
or   6x = 48    x = 8
Therefore, my age 8 years ago = x + 8 = 16 and
My grandfather's age 8 years ago = 9x + 8 = 80
Reqd ratio = 16/80 = 1/5 = 1 : 5
11. C) In 30 Litres of mixture milk and water are in the ratio=21:9
After adding water it becomes=3:7
Therefore ,Milk remains same in the mixture=21 litres
3x=21
x=7
Now after adding water the water becomes 7x=7*7=49
Already there is 9 litres of water therefore 40 litres of water is added
12. A) A’s Investment for 12 months=Rs.4000*12=48000
B’s Investment(Rs.6000 for 4 months and Rs.8000 for 8 months)=Rs.6000*4+Rs.8000*8=Rs.88000
C’Investment(Rs.8000 for 9 months and Rs.6000 for 3 months)=Rs.8000*9+Rs.6000*3=Rs.90000
Ratio of their incomes=A:B:C
= 48000:88000:90000 = 48:88:90 = 24:44:45
A’s Profit=16950*24/113 =Rs.3600
13. C) Let the age of the daughter be x years
Then,the age of the mother is (50-x) years
5 years ago
7(x-5)=50-x-5
8x=50-5+35=80
x=10
Therefore daughter age=10 years
mother’s age=40 years
14. C) Let the cost price be Rs.x
Now,according to the question,
600-x=x-400
2x=1000
x=Rs.500
Again,selling price of the article for making 25% profit
=500*125/100 =Rs.625
15. D) Total capacity=150
1st pipe takes 15 hrs to empty a tank=150/15=10litres in 1 hour
2nd Pipe takes 10 hrs to empty a tank=150/10=15 litres in 1 hour
If both the pipes are opened simultaneously then they can fill 25 litres in 1 hour
Total capacity=150
Time taken=150/25=6 hours