Quantitative Ability Test-3

Result

Quantitative Ability Test-3

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Weekly Quiz Competition

Question 1
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In a test consisting of 120 questions, a candidate correctly answers 60% of the first 90 questions. What percentage of the remaining questions does he need to answer correctly so that his answers to 55% of the total questions in the test are correct?

A
36

B
45

C
42

D
40

Solution
Question 2
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The ratio of coconut water and watermelon juice in a 500 ml solution is 3 ∶ 2. Some quantity of watermelon juice is added to the solution and the ratio becomes 1 ∶ 1. Find the amount of watermelon juice added.

A
200 ml

B
250 ml

C
150 ml

D
100 ml

Solution

Let the coconut water and watermelon juice be x lit.

3x + 2x = 500⇒ 5x = 500⇒ x = 100

We can say that coconut water is 300 ml and watermelon juice is 200 ml.

To make the coconut value equal, multiply the second ratio with 3 ⇒ Coconut : Watermelon = 3 : 3 ⇒ Watermelon = 3x - 2x = x Where, x = 100 ml
Question 3
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If a dozen apples weigh 1.8 kg in total, how many apples will be there in 3 boxes weighing 23.250 kg each?

A
280

B
155

C
465

D
215

Solution
Question 4
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The H.C.F. of 2268 and 3388 is:

A
23

B
25

C
36

D
28

Solution
Question 5
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Basim sold 25kg of apples to A at 10 % discount and 15kg of apples to B at 20% discount. If he gave discount on marked price and total profit amount earned by Basim is Rs. 360 which is 15%, then by what percent he marked up the apples over cost price?

A

B

C

D

Solution
Question 6
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The probability of an event ‘A’ happening on Monday is 40% and probability of event ‘B’ happening on Monday is 35%, what is the probability that either event A or event B is happening on Monday?

A
0.25

B
0.50

C
1

D
0.14

Solution

P (N) = 40%, P (S) = 35%

Formula used:

P (E) = P (A) × P (B)

Either Event A is happening or event B

⇒ P (E) = 0.4 × 0.35 ⇒ P (E) = 0.14
Question 7
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A horse takes seconds to complete a round around a circular field. If the speed of the horse was 66m/sec, then the radius of the field is,

A
25.62 m

B
26.52 m

C
25.26 m

D
26.25 m

Solution
Question 8
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Suresh started his journey form P to Q by his bike at the speed of 40km/h and then, the same distance he travelled on his foot at the speed of 10 km/h from Q to R. Then he returned from R to P via Q at the speed of 24 km/h. The average speed of the whole trip is:

A

B

C

D

Solution
Question 9
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Find a fraction with denominator 30 which is equivalent to 5/6.

A
50/30

B
25/30

C
25/50

D
30/25

Solution
Question 10
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The value of a machine depreciates at the rate of 25% each year. If the difference between its values at the end of the third and the fourth year is Rs.17,199, then what is the value of the machine at the end of the first year?

A
Rs. 1,32,208

B
Rs. 1,63,072

C
Rs. 1,83,456

D
Rs. 1,22,304

Solution