M=product of all even numbers from 1 to 25. N =product of all odd no from 26 to 200. M*N will have how many zeros?
- NOTA
- 42
- 25
- 21
0 voters
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Given that the equation x^3 + ax^2 + bx + c = 0 has three real roots α, β and γ. If [α] = [β] = [γ] = 1, then which of the following cannot be a combination of the values of the constants 'c' and 'a'?
{Here, [x] denotes the greatest integer less than or equal to x.}a. a = -3.3 and c = -1.25b. a = -5.7 and c = -6.75c. a = -4.8 and c = -3.75d. a = -4.2 and c = -2.85
Nine dots are placed on a piece of paper. Find the maximum number of right angled triangles which can be formed by joining any three dots.a. 18b. 36c. 40 d. 44e. 48
6 balls of different colors are to be distributed among 2 boys. What is the probability that each boy gets the same no. of balls.
- 5/16
- 3/8
- 1/2
- 15/64
0 voters
6 balls of different colors are to be distributed among 2 boys. What is the probability that each boy gets the same no. of balls ?
- 15/64
- 3/8
- 1/2
- 5/16
0 voters
6 balls of different colors are to be distributed among 2 boys. What is the probability that each boy gets the same no. of balls ?
- D. 3/8
- A. 5/16
- B. 15/64
- C. 1/2
0 voters
6 balls of different colors are to be distributed among 2 boys. What is the probability that each boy gets the same no. of balls ?
a) 5/16
b) 15/64
c) 1/2
d) 3/8
A speaks truth in 20% of the cases. B lies in 40% of the cases and C speaks the truth in 25% of the cases. All of them have been interrogated in a murder case. What is the probability that the inspector would catch the murderer, if he goes by the majority of answers given by A, B and C ?
A) 0.24
B) 0.45
C) 0.285
D) None of these
There are 3 urns A, B, C. A contains 4 red balls and 3 black balls. Urn B contains 5 red balls and 4 black balls. Urn C contains 4 red balls and 4 black balls. One ball is drawn from each of these urns. What is the probability that 3 balls drawn consist of 2 red balls and a black ball?
A) 17/42
B) 24/42
C) 19/42
D) 23/42
If N= 3^a * 3^b , a and b are any two integers whose range from 1 to 6. What is the probability that N is a multiple of 729?
A) 5/18
B) 5/11
C) 13/11
D) 13/18
E) None of these.
Efficiency of A is 1.25 times more than that of B. If B can level a circular plot of radius 50 ft in t hrs, the radius of a circular plot which A can level in the same time would be
Four unbiased dice are thrown simultaneously. If the product of the outcomes is x, what is the probability that x has at least two consecutive zeroes at the end?
A can complete a piece of work in 12 days, B in 15 days and C in 20 days. All of them together started the work but C left when he realised that the remaining work will be completed without him in the next two days, and B left when he realised that the remaining work will be completed without him in the next one day. Find the total number of days taken to complete the work.