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Answer – 1. X > Y
Explanation:
7/√x + 2/√x = √x
1/√x (7 + 2) = √x => x = 9
y(2x + 3) = 90
y = -7.5, 6

Incorrect

Answer – 1. X > Y
Explanation:
7/√x + 2/√x = √x
1/√x (7 + 2) = √x => x = 9
y(2x + 3) = 90
y = -7.5, 6

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

x² – 21x + 196 = 0
y² + 4y – 221 = 0

Correct

Answer – 5. X = Y or relation cannot be established
Explanation:
x² – 21x + 196 = 0
x = 28, – 7
(y – 13) (y + 17) = 0
y = 13, – 17

Incorrect

Answer – 5. X = Y or relation cannot be established
Explanation:
x² – 21x + 196 = 0
x = 28, – 7
(y – 13) (y + 17) = 0
y = 13, – 17

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

Samir age is 125% of what it was ten years ago, but 250/3% of what it will be after ten years. What is the age of Samir after 5 years?

Correct

Answer – 2. 55 years
Explanation :
Samir’s age before 10 years = x
125x/100 = x + 10
125x = 100x + 1000 => x = 40
Present age = x + 10 = 50; After 5 years = 55

Incorrect

Answer – 2. 55 years
Explanation :
Samir’s age before 10 years = x
125x/100 = x + 10
125x = 100x + 1000 => x = 40
Present age = x + 10 = 50; After 5 years = 55

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

The length of a rectangle wall is 5/2 times of its height. If the area of the wall is 1000m². What is the sum of the length and height of the wall?

Correct

Answer – 4. 70
Explanation :
length = 2x
height = 5x
Area of the wall = 5x * 2x = 10x² = 1000
x = 10; Sum of the length and height of the wall = 70

Incorrect

Answer – 4. 70
Explanation :
length = 2x
height = 5x
Area of the wall = 5x * 2x = 10x² = 1000
x = 10; Sum of the length and height of the wall = 70

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Sharmi took a loan at SI of 6 p.c.p.a in the first year & it increased by 1.5 p.c.p.a every year. If she pays Rs 8190 as interest at the end of 3 years, what was her loan amount?

Correct

Answer – 5.36400
Explanation:
Let loan amount be Rs X
8190 = {(X*6)/100}+ {X*(6+1.5)}/100 + {X*(6+1.5+1.5)}/100
X=36400

Incorrect

Answer – 5.36400
Explanation:
Let loan amount be Rs X
8190 = {(X*6)/100}+ {X*(6+1.5)}/100 + {X*(6+1.5+1.5)}/100
X=36400

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

Ravi is as much younger than Sharma as he is older than Samir. If the sum of the ages of Sharma and Samir is 80 years, what is definitely the difference between Sharma and Ravi’s age?

Correct

Answer – 5. Can not be determined
Explanation :
Sharma’s age – Ravi’s age = Ravi’s age – Samir’s age
Samir’s age + Sharma’s age = 2 Ravi’s age
Sharma’s age + Samir’s age = 80
Ravi’s age = 40; We can not find the difference between Sharma and Ravi’s age

Incorrect

Answer – 5. Can not be determined
Explanation :
Sharma’s age – Ravi’s age = Ravi’s age – Samir’s age
Samir’s age + Sharma’s age = 2 Ravi’s age
Sharma’s age + Samir’s age = 80
Ravi’s age = 40; We can not find the difference between Sharma and Ravi’s age

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