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Directions.Q(3-4) Find out the wrong number in the number series given below

250 260 291 314 340 370 405

Correct

Answer – 3. 260
Explanation:

Incorrect

Answer – 3. 260
Explanation:

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

x² + 12x + 35 = 0
5y² + 33y + 40 = 0

Correct

Answer – 4. X ≤ Y
Explanation:
x² + 12x + 35 = 0
x = -7, -5
5y² + 33y + 40 = 0
y = -5, -1.6

Incorrect

Answer – 4. X ≤ Y
Explanation:
x² + 12x + 35 = 0
x = -7, -5
5y² + 33y + 40 = 0
y = -5, -1.6

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

x² – 11x + 24 = 0
y² – 12y + 27 = 0

Correct

Answer – 5. X = Y or relation cannot be established
Explanation:
x² – 11x + 24 = 0
x = 3, 8
y² – 12y + 27 = 0
y = 3, 9

Incorrect

Answer – 5. X = Y or relation cannot be established
Explanation:
x² – 11x + 24 = 0
x = 3, 8
y² – 12y + 27 = 0
y = 3, 9

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

Kumar invests a certain sum in Savings Scheme A offering simple interest at 5 pcpa for 4 years. He further invests the amount obtained from Savings Scheme A into Savings Scheme B offering compound interest at 10 pcpa(compounded annually) for 2 years. If the interest obtained from Savings Scheme B was Rs 378, then what was the sum invested in Savings Scheme A?

Correct

Answer – 4. 1500
Explanation:
Let the principal for Savings Scheme A be P
SI= (P * 5 * 4)/100 = P/5
Amount = P + P/5 = 6P/5
CI at 10% for 2 years on 6P/5 is 378
CI =21% of 6P/5= 378
P = (378 * 5 * 100)/(21 * 6) = Rs 1500

Incorrect

Answer – 4. 1500
Explanation:
Let the principal for Savings Scheme A be P
SI= (P * 5 * 4)/100 = P/5
Amount = P + P/5 = 6P/5
CI at 10% for 2 years on 6P/5 is 378
CI =21% of 6P/5= 378
P = (378 * 5 * 100)/(21 * 6) = Rs 1500

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

The ratio of present age of Arun to that of Bharat is 9 : 10. 8 years ago the ratio of 1/7 of the Arun’s age that time to ¼ of Bharat’s age that time was 1 : 2.
Quantity I: Present age of Arun
Quantity II: The age of Bharat 4 years ago

Correct

Answer – 5. Quantity I = Quantity II or relation cannot be established
Explanation:
Present age of Arun is 9x, Bharat is 10x
8 years ago their age was – Arun – 9x-8 & Bharat – 10x-8
[1/7 (9x-8)]/[1/4(10x-8)]=1/2
X=4
Hence Arun’s age = 9 x 4 = 36
Bharat’s age = 10 x 4 = 40
Quantity I : Present age of Arun = 36
Quantity II: The age of Bharat 4 years ago = 40 – 4 = 36

Incorrect

Answer – 5. Quantity I = Quantity II or relation cannot be established
Explanation:
Present age of Arun is 9x, Bharat is 10x
8 years ago their age was – Arun – 9x-8 & Bharat – 10x-8
[1/7 (9x-8)]/[1/4(10x-8)]=1/2
X=4
Hence Arun’s age = 9 x 4 = 36
Bharat’s age = 10 x 4 = 40
Quantity I : Present age of Arun = 36
Quantity II: The age of Bharat 4 years ago = 40 – 4 = 36

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Two inlet pipes L and M can separately fill a water tank in 1 hour and 5/4 hour. respectively. There is an outlet pipe N in the bottom of the water tank to empty it. If all the three pipes are opened simultaneously, then the water tank is full in ⅚ hour. In how much time N alone can empty the water tank?

Correct

Answer – 2. 100 minutes
Explanation:
L+M can together take to fill = (60*75)/(60+75)
= 100/3
Let third pipe alone can empty the water tank in X minutes
[(100/3)*X]/[X-(100/3)] = 50
x= 100

Incorrect

Answer – 2. 100 minutes
Explanation:
L+M can together take to fill = (60*75)/(60+75)
= 100/3
Let third pipe alone can empty the water tank in X minutes
[(100/3)*X]/[X-(100/3)] = 50
x= 100

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

What is the area of a rectangular garden?
I. The perimeter of the rectangular garden is 500m and the breadth of the garden is 50m
II. The length and the breadth of the rectangular garden are in the ratio of 4 : 1.

Correct

Answer – 1. The data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
Explanation:
From Statement I
2(l+b) = 500
2(l+50) = 500
l = 200
Area = 50 * 200 = 10000 m^2
From Statement II
Only ratio is given. Hence statement II is not sufficient to answer the question.

Incorrect

Answer – 1. The data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
Explanation:
From Statement I
2(l+b) = 500
2(l+50) = 500
l = 200
Area = 50 * 200 = 10000 m^2
From Statement II
Only ratio is given. Hence statement II is not sufficient to answer the question.

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