HCF of 3240, 3600 and a third number is 36 and their LCM is 24 × 35 × 52 × 72. The third number is

1.  22 × 53 × 72

2.  22 × 35 × 72

3.  23 × 35 × 72

4.  25 × 52 × 72

View Answer  
4
Correct Answer :

22 × 35 × 72


Explanation :
No Explanation available for this question

There are four prime numbers written in ascending order. The product of the first three is 385 and that of the last three is 1001. Find the first number

1.  5

2.  7

3.  11

4.  17

View Answer  
4
Correct Answer :

5


Explanation :
No Explanation available for this question

Three men A, B and C go walking round a circle 1 kilometre in circumference at the rates of 10, 20 and 40 metres per minute respectively. If they all start together and walk in the same direction, when will they again be together at the same place

1.  After 50 minutes

2.  After 240 minutes

3.  After 800 minutes

4.  After 100 minutes

View Answer  
4
Correct Answer :

After 100 minutes


Explanation :
No Explanation available for this question

Which one of the following is the largest 2 5,6 3,3 7 and 8 2

1.  8√2

2.  2√5

3.   6√3

4.  3√7

View Answer  
4
Correct Answer :

8√2


Explanation :
No Explanation available for this question

If A’s salary is 25% higher than B’s salary, how much per cent is B’s salary lower than A’s

1.  15%

2.  20%

3.  25%

4.  33 1/3%

View Answer  
4
Correct Answer :

20\%


Explanation :
No Explanation available for this question

A number is increased by 10% and then reduced by 10%. After this operation, the number

1.  Does not change

2.  Decreases by 1%

3.  Increases by 1%

4.  Increases by 0.1%

View Answer  
4
Correct Answer :

Decreases by 1\%


Explanation :
No Explanation available for this question

A reduction of 20% in the price of sugar enables a purchaser to obtain 2 ½ kg more for Rs 160. Find the original price per kg of sugar

1.  Rs 12

2.   Rs 15

3.  Rs 16

4.  Rs 18

View Answer  
4
Correct Answer :

Rs 16


Explanation :
No Explanation available for this question

Successive discounts of 20% and 15% are equivalent to a single discount of

1.  35%

2.  32%

3.  17.5%

4.   17%

View Answer  
4
Correct Answer :

32\%


Explanation :
No Explanation available for this question

The difference between the simple interest and the compound interest compounded annually at the rate of 12% per annum on Rs 5,000 for two years will be

1.  Rs 17.50

2.  Rs 36

3.  Rs 4

4.  Rs 72

View Answer  
4
Correct Answer :

Rs 72


Explanation :
No Explanation available for this question

Two equal sums of money were invested, one at 4% and the other at 4 1/2%. At the end of 7 years, the simple interest received from the latter exceeded that received from the former by Rs 31.50. Each sum was

1.  Rs 1,000

2.   Rs 500

3.  Rs 750

4.  Rs 900

View Answer  
4
Correct Answer :

Rs 900


Explanation :
No Explanation available for this question
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