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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

The sum of ages of 4 members of a family 5 years ago was 90year. Now the daughter has been married off and replaced by a daughter-in-law, the sum of their ages is 104 years. What is the difference between the ages of daughter and daughter-in-law?

Correct

Explanation :
Present Sum of their ages with daughter = 90 + 20 = 110
Present Sum of their ages with daughter-in-law = 104
Difference = 100 – 104 = 6 yr

Incorrect

Explanation :
Present Sum of their ages with daughter = 90 + 20 = 110
Present Sum of their ages with daughter-in-law = 104
Difference = 100 – 104 = 6 yr

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

The average weight of 32 students in a class was calculated as 27kg. It was later found that the weight of two students in a class was wrongly added. The actual weight of one boy was 30kg, but it was calculated as 28kg and the weight of another boy in the class was 21 whereas it was calculated as 25kg. Find the difference between original average weight and calculated average weight?

Ravi has two bags, “P” and “Q” that contain green and blue balls. In the Bag ‘P’ there are 6 green and 8 blue balls and in the Bag ‘Q’ there are 6 green and 6 blue balls. One ball is drawn out from any of these two bags. What is the probability that the ball drawn is blue?

Correct

Explanation :
Total balls in A bag = 14, Total balls in A bag = 12
P bag = 1/2(8c1/14c1) = 2/7
Q bag = 1/2(6c1/12c1) = 1/4 —> total Probability = 2/7 + 1/4 =15/28

Incorrect

Explanation :
Total balls in A bag = 14, Total balls in A bag = 12
P bag = 1/2(8c1/14c1) = 2/7
Q bag = 1/2(6c1/12c1) = 1/4 —> total Probability = 2/7 + 1/4 =15/28

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

A river is flowing at a speed of 10 km/h in a particular direction. Mr.Ramesh, who can swim at a speed of 15 km/h in still water, starts swimming along the direction of flow of the river from points A and reaches another point B which is at a distance of 50 km from the starting point A. On reaching point B, he turns back and from starts swimming against the direction of flow of the river and stops after reaching point A. The total time taken by Ramesh to complete his journey is?

Correct

Explanation :
Speed of the stream = 10kmph
Downstream speed = 15 + 10 = 25kmph
Upstream speed = 15 – 10 = 5kmph
Total time taken by Ramesh = (50/25 + 50/5) = 12h

Incorrect

Explanation :
Speed of the stream = 10kmph
Downstream speed = 15 + 10 = 25kmph
Upstream speed = 15 – 10 = 5kmph
Total time taken by Ramesh = (50/25 + 50/5) = 12h

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Circumference of a semicircle of area 1925 sq. cm is equal to the breadth of a rectangle. If the length of the rectangle is equal to the perimeter of a square of side 48 cm. What is the perimeter of the rectangle in cm?

Correct

Explanation :
(22/7 *r *r) /2 = 1925
r* r = 1225
r = 35
Circumference of semicircle = 22/7 r + 2 r = 22/7 * 35 + 2 * 35 =180
Breadth of rectangle = 180 cm
Length of rectangle = perimeter of square = 4 * 48 = 192 cm
Perimeter of rectangle = 2 (180 + 192) = 744 cm

Incorrect

Explanation :
(22/7 *r *r) /2 = 1925
r* r = 1225
r = 35
Circumference of semicircle = 22/7 r + 2 r = 22/7 * 35 + 2 * 35 =180
Breadth of rectangle = 180 cm
Length of rectangle = perimeter of square = 4 * 48 = 192 cm
Perimeter of rectangle = 2 (180 + 192) = 744 cm

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

Directions: Q(6-10) Solve

Mark A If Quantity 1 > Quantity 2
Mark B If Quantity 1 < Quantity 2
Mark C If Quantity 1 ≥ Quantity 2
Mark D If Quantity 1 ≤ Quantity 2
Mark E If Quantity 1 is not related to Quantity 2

Mark A If Quantity 1 > Quantity 2
Mark B If Quantity 1 < Quantity 2
Mark C If Quantity 1 ≥ Quantity 2
Mark D If Quantity 1 ≤ Quantity 2
Mark E If Quantity 1 is not related to Quantity 2

(x – 13)² = 0
y² = 169

Correct

Explanation:
x² – 26x + 169 = 0
x = 13, 13
y² = 169
y = ±13

Incorrect

Explanation:
x² – 26x + 169 = 0
x = 13, 13
y² = 169
y = ±13

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Directions: Q(6-10) Solve

Mark A If Quantity 1 > Quantity 2
Mark B If Quantity 1 < Quantity 2
Mark C If Quantity 1 ≥ Quantity 2
Mark D If Quantity 1 ≤ Quantity 2
Mark E If Quantity 1 is not related to Quantity 2

Mark A If Quantity 1 > Quantity 2
Mark B If Quantity 1 < Quantity 2
Mark C If Quantity 1 ≥ Quantity 2
Mark D If Quantity 1 ≤ Quantity 2
Mark E If Quantity 1 is not related to Quantity 2

Mark A If Quantity 1 > Quantity 2
Mark B If Quantity 1 < Quantity 2
Mark C If Quantity 1 ≥ Quantity 2
Mark D If Quantity 1 ≤ Quantity 2
Mark E If Quantity 1 is not related to Quantity 2