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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

The average of A, B and C is 24, A:B = 2:3, A+B = 60.
Quantity I: B-A=?
Quantity I: B-C=?

Correct

Answer – 2. Quantity I < Quantity II
Explanation:
A + B = 60; A:B = 2:3
A = 24 B = 36
A + B + C = 72 => C = 12
B-A = 12
B-C = 24

Incorrect

Answer – 2. Quantity I < Quantity II
Explanation:
A + B = 60; A:B = 2:3
A = 24 B = 36
A + B + C = 72 => C = 12
B-A = 12
B-C = 24

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

Shyama’s monthly income is Rs. 18,400. She spends 30% of her monthly income on Mobile EMI, 40% of the remaining on Chit Fund investment and food and saves 50% of the remaining.
Quantity I: The amount spends on Chit Fund Investment & food
Quantity II: The amount spends on Mobile EMI

Correct

Answer – 1. Quantity I > Quantity II
Explanation:
30% of Rs. 18,400 = 552
40% of.(18400 – 552) = 713.92

Incorrect

Answer – 1. Quantity I > Quantity II
Explanation:
30% of Rs. 18,400 = 552
40% of.(18400 – 552) = 713.92

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Arun’s present age is three times his daughter’s present age and two fifth of his father’s present age. The average of the present age of all of them is 46 years.
Quantity I: The difference between Arun’s daughter’s present age and Arun’s father’s present age.
Quantity I: After 15 years, the sum of the Arun’s daughter’s age and Arun’s age.

Correct

Answer – 5. Quantity I = Quantity II or relation cannot be established
Explanation:
Let Arun’s present age = x
Then, his daughter’s age = x/3
Father’s age = (5/2)x
x + x/3 + (5/2)x / 3 = 46
x = 36 years
The required difference = 5/2*36 − 36/3 = 78 years
The required sum – [36 + 15 + 12 + 15] = 78 years

Incorrect

Answer – 5. Quantity I = Quantity II or relation cannot be established
Explanation:
Let Arun’s present age = x
Then, his daughter’s age = x/3
Father’s age = (5/2)x
x + x/3 + (5/2)x / 3 = 46
x = 36 years
The required difference = 5/2*36 − 36/3 = 78 years
The required sum – [36 + 15 + 12 + 15] = 78 years

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

One year ago the ratio between Merlin’s and Shyam’s salary was 3 : 4. The ratios of their individual salaries between last year’s and this year’s salaries are 4 : 5 and 2 : 3 respectively. At present the total of their salary is Rs. 4160.
Quantity I : The salary of Merlin
Quantity II : The salary of Shyam

Correct

Answer – 2. Quantity I < Quantity II
Explanation:
Let the salaries of Merlin and Shyam one year before be M1, S1 and now be M2,
S2 respectively.
M1/S1 = 3/4 …..(1)
M1/M2 = 4/5 …..(2)
S1/S2 = 2/3 …..(3)
and M2 + S2 = 4160 …..(4)
Solving all these equations, we get M2 = Rs. 1600.

Incorrect

Answer – 2. Quantity I < Quantity II
Explanation:
Let the salaries of Merlin and Shyam one year before be M1, S1 and now be M2,
S2 respectively.
M1/S1 = 3/4 …..(1)
M1/M2 = 4/5 …..(2)
S1/S2 = 2/3 …..(3)
and M2 + S2 = 4160 …..(4)
Solving all these equations, we get M2 = Rs. 1600.

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

In a box, there are 9 blue, 6 white and some black pens. A pen is randomly selected and the probability that the pen is black is ¼.
Quantity I : Number of black Pens + 1
Quantity II : Blue Pens, White Pens

Correct

Answer – 4. Quantity I ≤ Quantity II
Explanation:
Total probability = 1
Given probability of black pens = 1/4
=> Probability of blue and white pens = 1 – 1/4 = 3/4
But, given blue + white pens = 9 + 6 = 15
Hence,
3/4 —– 15
1 —– ?
=> 15 x 4/3 = 20.
Hence, total number of pens in the box = 20.

Incorrect

Answer – 4. Quantity I ≤ Quantity II
Explanation:
Total probability = 1
Given probability of black pens = 1/4
=> Probability of blue and white pens = 1 – 1/4 = 3/4
But, given blue + white pens = 9 + 6 = 15
Hence,
3/4 —– 15
1 —– ?
=> 15 x 4/3 = 20.
Hence, total number of pens in the box = 20.

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

Directions Q.(6-10): Find out the wrong number in the series given below.