# The H.C.F. of two numbers is 5 and their L.C.M. is 150. If one of the numbers is 25, then the other is:

1.  30

2.  28

3.  24

4.  20

4

30

Explanation :
No Explanation available for this question

# 504 can be expressed as a product of primes as

1.  2 × 2 × 3 × 3 × 7 × 7

2.   2 × 3 × 3 × 3 × 7 × 7

3.  2 × 3 × 3 × 3 × 3 × 7

4.  2 × 2 × 2 × 3 × 3 × 7

4

2 × 2 × 2 × 3 × 3 × 7

Explanation :
No Explanation available for this question

# A is a set of all those integers greater than 1 and less than 100 which are divisible either by 3 or by 4 but not by both. What is the index of the highest power of thousand that occurs in the product of all the elements of set A

1.  9

2.  7

3.  3

4.  4

5.  6

5

3

Explanation :
No Explanation available for this question

# Chris and his wife invited a total of 10 families on their marriage anniversary. While the host family had just the two members, each family invited consisted of four members. If every person in the party shook hands with every other person belonging to a different family exactly once, then find the number of handshakes that took place in the party.

1.  801

2.   800

3.   740

4.   729

5.  None of these

5

800

Explanation :
No Explanation available for this question

# What is the least number which when doubled will be exactly divisible by 12, 14, 18 and 22

1.  1286

2.  1436

3.  1216

4.  1386

4

1386

Explanation :
No Explanation available for this question

# What is the greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm

1.  10cm

2.  30cm

3.  25cm

4.  20cm

4

20cm

Explanation :
No Explanation available for this question

# Which of the following fraction is the largest

1.  11/12

2.  41/50

3.  21/40

4.  5/6

4

11/12

Explanation :
No Explanation available for this question

# Working together, two workers completed a job in 5 days. Had the first worker worked twice as fast and the second worker half as fast, it would have taken them 4 days to complete the job. In how many days will the first person working alone, complete the entire job

1.  10 days

2.   20 days

3.   30 days

4.   60 days

5.  72 days

5

30 days

Explanation :
No Explanation available for this question

# The product of two 2 digit numbers is 2028 and their HCF is 13. What are the numbers

1.  26,78

2.  39,52

3.  13,156

4.  36,68

4

39,52

Explanation :
No Explanation available for this question

1.  9

2.  8

3.  7

4.  6

5.  5

5