the sum of 20 distinct no is 801.what is the minimum lcm posible??
480
360
840
420
nota
n is the smallest positive integer such that 2n is a perfect square, 3n is a perfect cube and 5n is a perfect fifth power. If n is represented in its factorised form as p1a x p2b xp3c x ......, where p1, p2, p3, ... are all distinct prime numbers, then find the sum a + b + c+ ....
31
37
54
56
59
In how many ways 1500 can be written as a product of 3 integers?
A)
112
B)
116
C)
120
D)
124
How many ordered pairs of positive integers ( x,y ) satisfy the equation 37/x - 4/y = 1/13 ?
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in how many ways 31 people can be arranged in 3 rooms such that every room has odd number of people ?
Doctors have advised Renu not to take more than 20 chocolates in one day.when she went to the market to buy her daily quota,she found thatif she biuys chocolates from the market complex she would have to pay Rs 3 more for the same number of chocolates than she would have spend had she bought them from her uncle’s shop, getting two sweets less per rupee.she finally decides to get them from her uncle’s shop paying only in one rupee coins.
How many would she have spent at the market complex?
- 5
- 9
- 6
- 12
0 voters
New course by IITK .IIMC,ISI.
any updates? cut off? worth 16.2 tuition fee? :(
apply karna chaiye?
In how many ways can one or more of 101 letters be posted in 101 letter boxes?
A) 101^101 B) 101^100 C)102^101 -1 D) None of these
Mr Kumar has six number plates with the numbers 0,1,1,2,3,4 painted on them. He has to take five of them and arrange them to make a five-digit number. In how many ways can he form distinct five-digit numbers by arranging the number plates?
A) 300 B)396 C) 420 D) None of these.
if f ( x / (1-x) ) = 1 / x then find the value of f (cosec^2 x)
for natural number n, a function is defined as
f(1)=1
f(2)=1
f(3)=-1 and
f(n)=f(n-1) * f(n-3) for n>3
find the value of f(498) + f(499)
Divya goes to buy fruits and after a lot of bargaining s able to get the price of a dozen apples reduced by Re1 from the initial price,thereby enabling her to get 1 apple extra for every rupee saved.(Getting no discount on the extra apple). What is the initial price of a dozen apples?
- Rs10
- Rs15
- Rs12
- Rs13
0 voters
A model for a random spinner can be made by taking a uniform prob.
space on the circumference of a circle with radius 1, so that the probability
that the pointer of the spinner lands in an arc of length s is s/(2*pi).
Suppose the circle is divided into thirty-seven zones. What is the probability that the spinner stops in an even zone?
One of Mr. Ghajni , his wife, their son, and Mr. Ghajni's mother is a doctor and another is a lawyer.
1) if the doctor is younger than the lawyer, then the doctor and lawyer are not blood relatives.
2)if the doctor is a woman, then the doctor and the lawyer are blood relatives.
3) if the lawyer is a man then the doctor is a man.
whose occupation do you know ?
- HIS WIFE
- NONE.
- HIS MOTHER
- HIS SON
- MR. GHAJNI
0 voters
Kurt, a painter, has 9 jars of paint: 4 are yellow ,2 are red rest are brown. Kurt will combine 3 jars of paint into a new container to make a new color,which he will name accordingly to the following conditions:
Brun Y if the paint contains 2 jars of brown paint and no yellow
Brun X if the paint contains 3 jars of brown paint
Jaune X if the paint contains at least 2 jars of yellow
Jaune Y if the paint contains exactly 1 jar o f yellow
What is the probability that the new color will be Jaune
a) 5/42b) 37/42c) 1/21d) 4/9e) 5/9