A bag contains 4 red balls and 7 green balls . If 3 balls are drawn from the bag , replaced and once again three balls are drawn from the bag , what is the probability of obtaining 3 red balls on the first draw and three green balls on the second draw
If LCM (a,b)= (2^2)*(3^3)*(4^4)*(5^5) then how many different ordered pair of (a,b) are possible.
a. 3465 b. 3464 c. 1616 d. 1617
3/N has recurring decimals then How many Values of 100>N>0 are possible??
In a class of 150 students, each one likes at least one of the subjects among Science, English and Social. 80 students like Science and 70 like Social.
If the number of students who like exactly one subject is 90, then what is the maximum possible number of students who like English?
- 120
- 50
- 110
- 90
0 voters
In a class of 150 students, each one likes at least one of the subjects among Science, English and Social. 80 students like Science and 70 like Social.
If the number of students who like English is 90, then what is the maximum possible number of students who like only Science?
- 50
- 60
- 55
- 48
0 voters
In a class of 150 students, each one likes at least one of the subjects among Science, English and Social. 80 students like Science and 70 like Social.
If the number of students who like English is 100, then what is the maximum possible number of students who like only Social?
- 60
- 50
- 40
- 70
0 voters
Two natural numbers, m and n, are such that their least common multiple is 300. How many pairs of these numbers ( m and n) are possible?
The sum of factors of 1080 which are divisible by 15?
Answer is 2925.
Approach also pls.
if 3a+1/5a= 3 , then what is the value of 25a^2+1/9a^2=?..OA= 65/3....Method btao???
FDB Builders was awarded the contract to construct a bridge. The company employed 100 workers to finish the work in 120 days. When four-fifths of the work was completed in 80 days, the company wanted to reduce the number of workers. How many workers can be let go without affecting the completion schedule of the construction of the bridge?
a white cube is cut into smaller cubes(less than 200) of equal size. some of them are taken and dipped into bucket of red paint, some in blue paint, and rest in green paint. the co loured cubes are then taken out and joined to form a cube of original size such that the co loured pattern on each side is identical. if the ratio of number of green :red: blue is 4:3:2 , what can be the ratio of area of red, blue and green areas of the outer surface of the cube?
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what are the properties of diagonals of a trapezium? (any type)
Three equal circles of radius 2 cm intersect each other in such a way that each circle passes through the centres of the other two circles. Find the common area between the three circles.
Do please share your approach also
The capital of a company, Estyle, is made of 75,000 preferred shares with a dividend of 15% and 20,000 common shares, with the par value of each type of share as Rs 10. The total profit of Estyle was Rs 2,40,000 of which Rs. 40,000 was kept in a reserve fund. The remaining profit was distributed to the shareholders. What would be the difference in the dividend percentage given to the common shareholders if the amount kept away in the reserve fund was reduced to Rs 25,000?
- 10%
- 7.5%
- 5.75%
0 voters
A trader marks his goods at such a price that he can deduct 15% for cash and yet make 20% profit. Find d marked price of an item which costs him Rs 90
135 11/13
105 3/21
127 1/17
plz explain
There are 7 people in a room.What is the probability that exactly 2 of them were born on the same day of the week?
guys I posted a shares dividend question, which I never faced before of such type, do please look it at and provide with your suggestions as to how to approach it, looking forward for explanations friends!!!
A man walks only one step forward or one step backward when he walks.The probability of the man taking a step forward is 1/3 and the probability of the man taking a step backward is 2/3.
What is the probability that after 11 steps, he is 1 step away from the starting point.