# If shortest side of a right angled triangle was 5 cm longer and the longest side was 5 cm shorter, the triangle would be equilateral.  What is the area of the original right angled triangle

1.  300 cm2

2.  250 cm2

3.  200 cm2

4.  150 cm2

4

150 cm2

Explanation :
No Explanation available for this question

# A semicircular piece of paper (with radius 7 cm) is folded along the diameter to form a cone such that he centre of the semicircle becomes the vertex of the cone.If the base of the cone is covered by a circular paper lid, what is the total surface area of the cone

1.  231 cm2

2.  115.5 cm2

3.  346.5 cm2

4.  None of these

4

115.5 cm2

Explanation :
No Explanation available for this question

# An experiment succeeds twice as often as it fails. What is the probability that in the next 5 trials there will be four successes

1.  0

2.  (2/3)4

3.  5×(2/3)4×(1/3)

4.  (2/3)4×(1/3)

4

5×(2/3)4×(1/3)

Explanation :
No Explanation available for this question

# Dinesh speaks truth in 3/4 cases and Abhishek lies in 1/5 cases. What is the percentage of cases in which both Dinesh and Abhishek contradict each other in stating a fact

1.  60%

2.  35%

3.  20%

4.  15%

4

35\%

Explanation :
No Explanation available for this question

# Sridhar Krishnan bought 100  shares each of  4 different  companies.   The purchase  prices  of  the shares are  Rs.20, Rs.19.50, Rs.27.50 and Rs.26.00 per share on a certain date.   In due course of time he sold off all the shares of all the 4 companies, but the transactions took place on different dates.   The sale transactions fetched him Rs.12.3, Rs.37.4, Rs.28.6 and Rs.21.7 per share, but it is not known which company's shares were sold when.  What is his net profit or loss

1.  Profit Rs.7

2.  Loss Rs.700

3.  Profit Rs.700

4.  Profit Rs.400

4

Profit Rs.700

Explanation :
No Explanation available for this question

# When 3 fair coins are tossed together, what is the probability of getting 2 tails

1.  1/4

2.  2/3

3.  1/3

4.  1/2

4

1/2

Explanation :
No Explanation available for this question

# x1,x2,x3,…,x50are are  fifty real numbers such that xr < xr+1 for r = 1, 2, 3... 49. Five numbers out of these are picked up at random. The probability that the five numbers have x20 as the middle is:

1.  20C2×30C2 / 50C3

2.  19C2×30C2 / 50C5

3.  19C2×31C2 / 50C5

4.  None of these

4

19C2×30C2 / 50C5

Explanation :
No Explanation available for this question

# A set of cards bearing the number 200-299 is used in a game. if card is drawn at random, what is the probability that it is divisible by:

1.  0.66

2.  0.33

3.  0.44

4.  0.55

4

0.66

Explanation :
No Explanation available for this question

# When two dice are thrown simultaneously, what is the probability that the sum of the two numbers that turn up is less than 11

1.  5/6

2.  11/12

3.  1/6

4.  1/12

4

11/12

Explanation :
No Explanation available for this question

# A dice is rolled three times and the sum of the numbers appearing on the uppermost face is 15. The chance that the first roll was a four is:

1.  2/5

2.  1/5

3.  1/6

4.  None of these

4