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Question 1 of 10
1. Question
1 pointsCategory: Quantitative AptitudeA mixture of acid and water in a container comprises 12 litre of acid. If 8 litre of pure acid and 3 litre of pure water were added to this container, the percentage of water in the new mixture would be 20%. What was the initial quantity of water in the container?.
Correct
Answer – 3) 2L
Explanation:
Initial acid =12L water =X
Mixture =12 : X
(X+3)/(23+X)=20/100=1/5
X=2Incorrect
Answer – 3) 2L
Explanation:
Initial acid =12L water =X
Mixture =12 : X
(X+3)/(23+X)=20/100=1/5
X=2 
Question 2 of 10
2. Question
1 pointsCategory: Quantitative AptitudeA bucket contain 30 cups which are numbered from 1 to 30. If two cups are drawn at random then what is the probability that both numbers are prime?
Correct
Answer – 3) 3/29
Explanation:
From 1 to 30 prime number = 2,3,5,7,11,13,17,19,23,29
Required probability = 10C2/30C2=3/29Incorrect
Answer – 3) 3/29
Explanation:
From 1 to 30 prime number = 2,3,5,7,11,13,17,19,23,29
Required probability = 10C2/30C2=3/29 
Question 3 of 10
3. Question
1 pointsCategory: Quantitative AptitudeIn November, David spent 45% of his monthly salary on paying bill and rent. Out of the remaining salary, he invested 60% in Mutual Fund and the remaining he deposited in bank. He deposited Rs 15400 in bank. If in December, he got an increment of 10%, what was his salary in December?
Correct
Answer – 2) 77000
Explanation:
Let the monthly salary in November =100
Amount spent on paying bill and rent= 45%
Remaining amount =55%
Amount invested in Mutual Fund=55 * 60/100=33 %
Now remaining amount = 100(45+33)=22 %
22% = 15400
100% = 15400 * 100/22= 70000
Required monthly salary in December =70000 * (110/100)=77000Incorrect
Answer – 2) 77000
Explanation:
Let the monthly salary in November =100
Amount spent on paying bill and rent= 45%
Remaining amount =55%
Amount invested in Mutual Fund=55 * 60/100=33 %
Now remaining amount = 100(45+33)=22 %
22% = 15400
100% = 15400 * 100/22= 70000
Required monthly salary in December =70000 * (110/100)=77000 
Question 4 of 10
4. Question
1 pointsCategory: Quantitative AptitudeCost price(CP) of each of the bags P & Q is Rs X. Bag P was sold at a profit of 10% and the Bag Q was sold at a profit of 30%. If the overall profit earned after selling both the bags is Rs 136, what is the value of “X”.
Correct
Answer – 1) 340
Explanation:
X*110/100 + X*130/100=2x+136
X = 340Incorrect
Answer – 1) 340
Explanation:
X*110/100 + X*130/100=2x+136
X = 340 
Question 5 of 10
5. Question
1 pointsCategory: Quantitative AptitudeA watercraft which has a speed of 30 kmph in still water goes 60 km downstream and comes back in a total of 4 hours 30 minutes. What is the speed of the stream?
Correct
Answer – 1) 10 kmph
Explanation:
Let the speed of stream = X kmph
Downstream speed = 30+X
Upstream speed = 30X
60/(30+X) + 60/(30X)=9/2
X=10 kmphIncorrect
Answer – 1) 10 kmph
Explanation:
Let the speed of stream = X kmph
Downstream speed = 30+X
Upstream speed = 30X
60/(30+X) + 60/(30X)=9/2
X=10 kmph 
Question 6 of 10
6. Question
1 pointsCategory: Quantitative AptitudeIf suresh walks at 28 kmph instead of 20 kmph, he would have walked 20 km more. The actual distance travelled by him is?
Correct
Answer – 1) 50 km
Explanation:
Let the original distance X km
(X/20) = (X+20)/28
X=50 kmIncorrect
Answer – 1) 50 km
Explanation:
Let the original distance X km
(X/20) = (X+20)/28
X=50 km 
Question 7 of 10
7. Question
1 pointsCategory: Quantitative AptitudeTrains starting at the same time from two stations 500 km apart and going in opposite directions cross each other at a distance of 210 km from one of the stations. What is the ratio of their speeds?
Correct
Answer – 2) 21:29
Ratio of their speed = 210 : (500210) = 210 : 290 = 21:29Incorrect
Answer – 2) 21:29
Ratio of their speed = 210 : (500210) = 210 : 290 = 21:29 
Question 8 of 10
8. Question
1 pointsCategory: Quantitative AptitudeIn a finance company, a scheme named Silver offered the SI at the rate of 6% p.a received on a principal of Rs X was Rs 482.40 when invested for 3 years. If Gold Scheme offered CI at 20% p.a, what was the interest received by investing Rs (X680) for 2 years in Gold Scheme?
Correct
Answer – 5) 880
Explanation:
482.40 * 100 = P * 6 *3
P = Rs 2680
In Gold Scheme, Principal will be (2680680)= 2000
In Gold Scheme,
Total amount = (2000 *120 *120)/(100 *100)
= 2880
Interest = (28802000)= Rs 880Incorrect
Answer – 5) 880
Explanation:
482.40 * 100 = P * 6 *3
P = Rs 2680
In Gold Scheme, Principal will be (2680680)= 2000
In Gold Scheme,
Total amount = (2000 *120 *120)/(100 *100)
= 2880
Interest = (28802000)= Rs 880 
Question 9 of 10
9. Question
1 pointsCategory: Quantitative AptitudeIn a hall, three staffs weighing 75 kg, 71 kg and 63 kg respectively leave the hall and are replaced. By three staffs weighing 47kg, 49kg and 53 kg respectively. As a result, the average weight of the hall decreased by 1.25 kg. How many staffs are there in the hall ?
Correct
Answer – 1) 48
Explanation:
Difference of weight among three staffs = (75+71+63)(47+49+53) = 60 kg
Let total number of staffs = X
60/X= 1.25
X = 48Incorrect
Answer – 1) 48
Explanation:
Difference of weight among three staffs = (75+71+63)(47+49+53) = 60 kg
Let total number of staffs = X
60/X= 1.25
X = 48 
Question 10 of 10
10. Question
1 pointsCategory: Quantitative AptitudeAmit, Banu, Chand each working alone, can finish a piece of work in 27, 33 and 45 days respectively. Amit starts by working alone for 12 days, then Banu takes over from Amit and works for 11 days. At this stage Chand takes over from Banu and complete the remaining work. In how many days the whole work was completed?
Correct
Answer –2) 33 days
Explanation:
Chand can finish the remaining work in X days
12/27 + 11/33 + X/45= 1
X = 10
Time taken by Amit, Banu and Chand together to complete the whole work = 12+11+10 = 33 daysIncorrect
Answer –2) 33 days
Explanation:
Chand can finish the remaining work in X days
12/27 + 11/33 + X/45= 1
X = 10
Time taken by Amit, Banu and Chand together to complete the whole work = 12+11+10 = 33 days
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