Quiz on Math Set 151

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Quiz on Math Set 151 :

Question 1 :

On a road three consecutive traffic lights change after 36, 42 and 72 seconds respectively. If the lights are first switched on at 9:00 AM sharp, at what time will they change simultaneously? 
A. 9:08:04
B. 9:08:24
C. 9:08:44
D. None of these

Correct Ans: Option B

Question 2 :

The HCF of 2472, 1284 and a third number 'N' is 12. If their LCM is 2^3 × 3^2 × 5 × 103 × 107, then the number 'N' is:
A. 2^2 × 3^2 × 7
B. 2^2 × 3^3 × 10
C. 2^2 × 3^2 × 5
D. None of these

Correct Ans: Option D

Question 3 :

Find the LCM and HCF of 2.5, 0.5 and 0.175. 
A. 2.5
B. 5
C. 7.5
D. 17.5

Correct Ans: Option D

Question 4 :

Find the HCF of (3^125-1) and (3^35-1). 
A. 3^4 - 1
B. 3^5 - 1
C. 3^12 - 1
D. None of these

Correct Ans: Option B

Question 5 :

The last digit of the number obtained by multiplying the numbers 81 × 82 × 83 × 84 × 86 × 87 × 88 × 89 will be
A. 0
B. 8
C. 6
D. 7

Correct Ans: Option C

Question 6 :

Arrangement of the fractions 4/3, −2/9, −7/8 ,5/12 into ascending order is
A. –2/9 ,– 7/8, 5/12, 4/3
B. -7/8, -2/9, 5/12, 4/3
C. -7/8, -2/9, 4/3, 5/12
D. -7/8, -2/8, 5/12, 4/3

Correct Ans: Option D

Question 7 :

Which is the largest of the following fractions ? 2/3, 3/5, 8/11 , 11/17
A. 11/17
B. 2/3
C. 3/5
D. 8/11

Correct Ans: Option D

Question 8 :

The greatest value among the fractions 2/7 , 1/3 , 5/6 , 3/4 is :
A. 1/3
B. 2/7
C. 5/6
D. 3/4

Correct Ans: Option C

Question 9 :

Which of the following is the smallest fraction?
8/25, 7/23, 11/23, 14/53
A. 11/23
B. 14/53
C. 7/23
D. 8/25

Correct Ans: Option B

Question 10 :

The least number among the fraction 15/16,19/20,24/25,34/35 is
A. 19/20
B. 24/25
C. 15/16
D. 34/35

Correct Ans: Option C

Quiz Summary


Here the correct answers of every question in this quiz.

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


Total Questions: 10
Your score:
Subject: Math
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