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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

P can complete a given contract in 20 days. Q takes 20% more than time than P to complete the same contract. Q started working alone for 2 days and was joined by P till the completion of contract. In how many days was the entire contract completed?

Correct

Answer – 2) 12
Explanation:
Time taken by P in doing work =20 days
Time taken by Q =(20*120)/100=24 days
Q’s 2 days work = 2/24=1/12
Remaining work =1-1/2=11/12
(P+Q)’s 1 day’s work = 1/20+1/24=11/120
Time taken in doing 1 work =120/11
Time taken in doing 11/12 work =120/11 *11/20 = 10 days

Incorrect

Answer – 2) 12
Explanation:
Time taken by P in doing work =20 days
Time taken by Q =(20*120)/100=24 days
Q’s 2 days work = 2/24=1/12
Remaining work =1-1/2=11/12
(P+Q)’s 1 day’s work = 1/20+1/24=11/120
Time taken in doing 1 work =120/11
Time taken in doing 11/12 work =120/11 *11/20 = 10 days

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

P’s age 7 years ago was 10 years more than half of his present age. The respective ratio between Q’s age 4 years ago and P’s age that time was 2 :5. If R’s age 12 years hence will be thrice of Q’s age 2 years ago, what is R’s present age?

Correct

Answer – 2) 30
Explanation:
P’s present age = x years
x-7=x/2+10
x=34 years
Again, Q’s present age =y years
(y-4)/30=2/5
Y=16 years
R+12=3* (16-2)=42
R = 30 years

Incorrect

Answer – 2) 30
Explanation:
P’s present age = x years
x-7=x/2+10
x=34 years
Again, Q’s present age =y years
(y-4)/30=2/5
Y=16 years
R+12=3* (16-2)=42
R = 30 years

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

A sum of Rs.7650 is to be divided between Pranav and Pradeep who are respectively 18 and 19 year old, in such a way that if their shares will be invested at 4% per annum at CI, they will receive equal amounts on attaining the age of 21 year. The present share of Pranav is

Correct

Answer – 3) 3750
Explanation :
Amount got by Pranav after 3 years = Amount got by Pradeep after 2 years
x*(26/25)³ = (7650 – x)*(26/25)^2
26/25 = 7650 – x / x
x = 3750

Incorrect

Answer – 3) 3750
Explanation :
Amount got by Pranav after 3 years = Amount got by Pradeep after 2 years
x*(26/25)³ = (7650 – x)*(26/25)^2
26/25 = 7650 – x / x
x = 3750

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Pinkey’s downstream swimming rate is five times of her upstream swimming rate. If she covers 12 km upstream in 2.5 hours, what distance she will cover in 6 hours downstream?

Correct

Answer – 5) 144 km
Explanation:
Upstream speed = 12/2.5 = 4.8 kmph
Downstream speed = 4.8 x 5 = 24 kmph
Distance she covers downstream in 6 hours = 24 x 6 = 144 km.

Incorrect

Answer – 5) 144 km
Explanation:
Upstream speed = 12/2.5 = 4.8 kmph
Downstream speed = 4.8 x 5 = 24 kmph
Distance she covers downstream in 6 hours = 24 x 6 = 144 km.

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Arjun went to the textile shop at the speed of 60 kmph while returning for his home he covered the half of the distance at the speed of 10 kmph, but suddenly he realized that he was getting late so he increased the speed and reached the home by covering rest half of the distance at the speed of 30 kmph. The average speed of the Arjun in the whole length of journey is?

Correct

Answer – 1. 24 kmph
Explanation:
Distance between home and textile shop – x km
Total distance = x + x = 2x
Total time taken = x/60 + (x/2)/10 + (x/2)/30 = x/12
Average speed = 2x/(x/12) = 24 kmph

Incorrect

Answer – 1. 24 kmph
Explanation:
Distance between home and textile shop – x km
Total distance = x + x = 2x
Total time taken = x/60 + (x/2)/10 + (x/2)/30 = x/12
Average speed = 2x/(x/12) = 24 kmph