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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

Sumi lends an equal sum of money at the same rate of interest to A and B. The money lends to A becomes twice of the original amount in just four years at SI. While Sumi lends to B for the first two years at CI and for the rest two years at SI. The difference between the amount of A and B after 4 years is Rs. 2970. What is the amount of money that Sumi lends to each one?

Correct

Answer – 3) Rs.8640
Explanation:
2x = x + x*4*r/100
R = 25%
For B:
First two years CI
A = x (1+25/100) 2 = 25x/16
Next two years at SI
Interest = 25x/16*25*2/100 = 25x/32
Total amount 4 years = 25x/16+25x/32 = 75x/32
Difference between A and B amounts = 2970
75x/32-2x =2970
x =8640

Incorrect

Answer – 3) Rs.8640
Explanation:
2x = x + x*4*r/100
R = 25%
For B:
First two years CI
A = x (1+25/100) 2 = 25x/16
Next two years at SI
Interest = 25x/16*25*2/100 = 25x/32
Total amount 4 years = 25x/16+25x/32 = 75x/32
Difference between A and B amounts = 2970
75x/32-2x =2970
x =8640

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

A boat takes 7 hours more while going back in upstream than in downstream. If the distance between two places is 30 km and the speed of the boat in still water is 6.5 kmph, what must be the speed of a boat in still water so that it can row downstream 30 km in 4 hours?

Correct

Answer – 4) 4 Kmph
Explanation:
7 = 30(1/6.5-R – 1/6.5+R)
R =3.5
S+R = 30/4 =7.5
S =7.5-3.5 =4

Incorrect

Answer – 4) 4 Kmph
Explanation:
7 = 30(1/6.5-R – 1/6.5+R)
R =3.5
S+R = 30/4 =7.5
S =7.5-3.5 =4

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Preethi, Shalini and Mano are three sisters Preethi and Shalini are twins. The sum of the ages of Preethi and Shalini is same as that of Mano alone. Three years earlier the ratio of age of Preethi and Mano was 3:7. What will be the age of Shalini 8 years hence?

Correct

Answer – 4) 20 years
Explanation:
Preethi = Shalini = x
Mano = 2x
x-3/2x-3 = 3/7
x = 12
x+8 = 20

Incorrect

Answer – 4) 20 years
Explanation:
Preethi = Shalini = x
Mano = 2x
x-3/2x-3 = 3/7
x = 12
x+8 = 20

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Ritesh and Naveen are two different persons, but when they worked together, they complete it in 20 days. Had Ritesh worked at half of his efficiency and Naveen at five times of his efficiency it would have taken them to finish the job in 50% of the scheduled time. In how many days Ritesh can complete the job working alone?

Correct

Answer – 3) 30
Explanation:
1/Ritesh + 1/Naveen = 1/20
1/2 Ritesh + 5/Naveen = 1/10
Solving both equations
Ritesh can complete the work alone in 30 days

Incorrect

Answer – 3) 30
Explanation:
1/Ritesh + 1/Naveen = 1/20
1/2 Ritesh + 5/Naveen = 1/10
Solving both equations
Ritesh can complete the work alone in 30 days

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

The profit on selling 12 power banks is equals selling price of 5 pendrives. While the loss on selling 12 pendrives equal selling price of 4 power banks. Also, profit percentage equals to the loss percentage and cost of a power bank is half of the cost of a pendrive. What is the ratio of selling price of power banks to the selling price of a pendrive?

Correct

Answer – 5) 5:2
Explanation:
Let CP of power bank be x and SP of power bank be y
Then CP of pendrive be 2x and SP of pendrive be z
power bank: profit on 12 power banks = SP of 5 pendrives
12(y-x) = 5z
pendrive: loss on 12 pendrives = SP of 4 power banks
12(2x-z) = 4y
Profit percentage is equal to loss percentage
5z/12x = 4y/12*2x
y/z = 5/2

Incorrect

Answer – 5) 5:2
Explanation:
Let CP of power bank be x and SP of power bank be y
Then CP of pendrive be 2x and SP of pendrive be z
power bank: profit on 12 power banks = SP of 5 pendrives
12(y-x) = 5z
pendrive: loss on 12 pendrives = SP of 4 power banks
12(2x-z) = 4y
Profit percentage is equal to loss percentage
5z/12x = 4y/12*2x
y/z = 5/2

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

The average age of Sri and Giri is 40 years. If Kumar replaces Sri, the average age becomes 37 years and if Kumar replaces Giri, then the average age becomes 43 years. If the average age of Daniel and Chand be half of the average age of Sri, Giri, and Kumar, then the average age of all the five people is?

Lithika, Mano and Naveen started a business at the initial capital in the ratio of 2:3:4. At the end of sixth month, Lithika invests amount such that his initial capital become equal to Mano’s initial investment. Mano’s annual profit is 3000. What is the total profit?

The area of a rectangle is 4 times of the area of a square. The length of the rectangle is 320 cm and the breadth of the rectangle is 3/4 th of the side of the square. What is the side of the square?

Correct

Answer – 1) 60 cm
Explanation:
Side of the square – x
Breadth of the rectangle = 3/4th of the side of the square = 3/4x
4x^2 = 320 * (¾) x
4x = 320 * (¾)
x = 60

Incorrect

Answer – 1) 60 cm
Explanation:
Side of the square – x
Breadth of the rectangle = 3/4th of the side of the square = 3/4x
4x^2 = 320 * (¾) x
4x = 320 * (¾)
x = 60

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

Ritesh invested a certain amount in SBI Mutual Fund and Axis Mutual Fund in the ratio of 4:5 respectively. At the end of one year, he earned a total dividend of 30% on his investment. After one year he reinvested the amount including dividend in the ratio of 6:7 in SBI Mutual Fund and Axis Mutual Fund. If the amount reinvested in Axis Mutual Fund was Rs 94500, what was the original amount invested in SBI Mutual Fund?

Correct

Answer – 3) 60000
Let the common ratio be X
The amount invested in SBI Mutual Fund =4X
The amount invested in Axis Mutual Fund =5X
After one year, Mr Ritesh’s total amount
= 9X * 130/100 = 11.7X
Amount reinvested in Axis Mutual Fund = 11.7 X * (7/13)
11.7 X * (7/13)=94500
X=15000

Incorrect

Answer – 3) 60000
Let the common ratio be X
The amount invested in SBI Mutual Fund =4X
The amount invested in Axis Mutual Fund =5X
After one year, Mr Ritesh’s total amount
= 9X * 130/100 = 11.7X
Amount reinvested in Axis Mutual Fund = 11.7 X * (7/13)
11.7 X * (7/13)=94500
X=15000

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