Quiz on Math Set 187

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Quiz on Math Set 187 :

Question 1 :

Three taps A, B and C together can fill an empty cistern in 10 minutes. The tap A alone can fill it in 30 minutes and the tap B alone in 40 minutes. How long will the tap C alone take to fill it?
A. 16 minutes
B. 24 minutes
C. 32 minutes
D. 40 minutes

Correct Ans: Option B

Question 2 :

A and B working separately can do a piece of work in 9 and 15 days respectively. If they work for a day alternately, with A beginning, then the work will be completed in:
A. 9 days
B. 10 days
C. 11 days
D. 12 days

Correct Ans: Option C

Question 3 :

Two pipes A and B can fill a tank in 36 min. and 45 min. respectively. Another pipe C can empty the tank in 30 min. First A and B are opened. After 7 minutes, C is also opened. The tank filled up in:
A. 39 min.
B. 46 min
C. 40 min.
D. 45 min.

Correct Ans: Option B

Question 4 :

Three men A, B, C working together can do a job in 6 hours less time than A alone, in one hour less time than B alone and in one half the time needed by C when working alone. Then A and B together can do the job in:
A. 2/3 hours
B. 3/4 hours
C. 3/2 hours
D. 4/3 hours

Correct Ans: Option D

Question 5 :

A does half as much work as B in one -sixth of the time.If together they take 10 days to complete a work, how much time shall B take to do it alone?
A. 13.33 days
B. 20 days
C. 30 days
D. 40 days

Correct Ans: Option D

Question 6 :

If Rs. 782 be divided into three parts, proportional to 1/2: 2/3: 3/4 then the first part is: 
A. Rs. 182
B. Rs. 190
C. Rs. 196
D. Rs. 204

Correct Ans: Option D

Question 7 :

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries? 
A. 3 : 3 : 10
B. 10 : 11 : 20
C. 23 : 33 : 60
D. Cannot be determined

Correct Ans: Option C

Question 8 :

If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number? 
A. 2 : 5
B. 3 : 7
C. 5 : 3
D. 7 : 3

Correct Ans: Option C

Question 9 :

The fourth proportional to 5, 8, 15 is: 
A. 18
B. 24
C. 19
D. 20

Correct Ans: Option B

Question 10 :

Two number are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is: 
A. 27
B. 33
C. 49
D. 55

Correct Ans: Option B

Quiz Summary


Here the correct answers of every question in this quiz.

Q.1 [B],     Q.2 [C],     Q.3 [B],     Q.4 [D],     Q.5 [D],     Q.6 [D],     Q.7 [C],     Q.8 [C],     Q.9 [B],     Q.10 [B],    


Total Questions: 10
Your score:
Subject: Math
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