When numbers are written to the base 11, how many two-digit numbers are possible which are thrice the numbers formed by reversing their respective digits

1.  0

2.  1

3.  2

4.  3

View Answer  
4
Correct Answer :

2


Explanation :
No Explanation available for this question

If x is a positive number not equal to 1, then what is the value of the following expression

1.  3

2.  4

3.  1

4.  None of these

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

The Congress government promised in 1991 that they would bring down prices in 100 days. They failed to do so and the prices went up by 10% each year for the next five years i.e., from 1992 to 1996. Then BJP got elected and successfully brought down the prices by 10% each year from 1997 onward. Find approximately by what percentage will prices in 1999 be more than those in 1992

1.  18%

2.  5%

3.  8%

4.  7%

View Answer  
4
Correct Answer :

7\%


Explanation :
No Explanation available for this question

In the triangle ABC, E and D are points on AB while F is a point on AC. It is known that    BC = BD, ED = DC, EC= EA and DF is perpendicular to AC. If FC = 3 cm and ∠B = 20°, what is the length of DC

1.  3√3 cm

2.  6 cm

3.  2√3 cm

4.  None of these

View Answer  
4
Correct Answer :

6 cm


Explanation :
No Explanation available for this question

Akash regularly makes a round trip up and down a river to meet his friend Rashmi. Today, his speed downstream is half his usual downstream speed while his speed upstream is double his usual upstream speed. If his usual speed in still water is 12 kmph and the usual stream speed is    8 kmph, how many hours (approximately) is he going to spend on today’s round trip of 40 km

1.  21/2 

2.  41/2 

3.  51/3

4.  51/2

View Answer  
4
Correct Answer :

41/2 


Explanation :
No Explanation available for this question

How many different digits are possible in the first position from the left

1.  3

2.  1

3.  4

4.  2

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

In a box there are 90 slips numbered from 1 to 90. Ramu picks up four slips at random one after the other without replacement. What is the probability that the numbers on the slips in the order he has picked up are ascending

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

How many positive integral values between 17 and 337 (both values inclusive) can z assume, given that z = 2x + 7y, where x and y are natural numbers

1.  161

2.  184

3.  207

4.  321

View Answer  
4
Correct Answer :

321


Explanation :
No Explanation available for this question

Anne, Bet and Corr are three bees that start from the same flower and fly away in three different directions in search of nectar. After some time Corr is as distant from the mid point ‘D’ of the straight line joining Anne and Bet as Anne is from D. Anne and Bet are 300m apart while Bet is 180 m from Corr. At this instant Anne sends a distress signal which is received simultaneously by the other two bees. If a bee can fly at a speed of 3 m/sec then who among Bet and Corr can reach Anne quicker and by how many seconds

1.  Corr −by 20 seconds

2.  Bet −by 20 seconds

3.  Bet −by 18 seconds

4.  Cannot be determined

View Answer  
4
Correct Answer :

Corr −by 20 seconds


Explanation :
No Explanation available for this question

Two outlets of the same capacity when opened together can empty a full tank of volume 3000 cu.m in 24 hr. If the tank is going to be filled by a tap at the rate of 300 cu.m/hr, what is the least number of additional outlets (which have the same capacity as the former outlets) that have to be opened, so that the tank never overflows

1.  4

2.  5

3.  3

4.  7

View Answer  
4
Correct Answer :

3


Explanation :
No Explanation available for this question
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