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Shreyans Singh
Subject: Maths
, asked on 13/5/18
Solve this:
Answer
1
Shreyans Singh
Subject: Maths
, asked on 13/5/18
Q. From a group of 7 men and 6 women , 5 persons are to be selected to form a committee so that atleast 3 men are there on the committee . In how many can it be done ?
Answer
1
Shashwat Pathak
Subject: Maths
, asked on 8/5/18
Q. Let t
m
denote the sum of m
th
power of the reciprocals of the roots of the equation 1 + x / 1 ! + x
2
/2! + ..................x
n
/n! show that t
2
= t
3
= .....t
n
= 0 and t
n+1
=
1
n
!
Answer
1
Shashwat Pathak
Subject: Maths
, asked on 8/5/18
please??
Answer
0
Rajarshi Das
Subject: Maths
, asked on 27/4/18
n
c
x=
n
c
y
and , x not equal to y, Then x+y=?
Answer
1
Ayan
Subject: Maths
, asked on 18/4/18
plzz provide answer for 1,2,3
Q
1
.
3
log
x
4
+
2
log
4
x
4
+
3
long
16
x
4
=
0
Q
2
.
log
10
log
x
10
=
log
x
2
x
Q
3
.
7
log
10
x
=
98
-
x
log
10
7
Answer
1
Dharmveer Gautam
Subject: Maths
, asked on 31/3/18
Please explain the marked step .
Answer
1
Dharmveer Gautam
Subject: Maths
, asked on 31/3/18
Please explain the marked step for this question:
F
i
n
d
r
,
i
f
5
P
r
4
=
6
P
r
-
1
5
Marked step:
5
!
(
4
-
r
)
!
=
6
×
5
!
(
5
-
r
+
1
)
(
5
-
r
)
(
5
-
r
-
1
)
!
Answer
1
Dhriti Gupta
Subject: Maths
, asked on 30/3/18
An 8 oared boat is to be manned by 8 men of whom 2 can row on bow side and one can row on stroke side. The number of ways in which the crew can be arranged
Answer
2
Aditya Singh
Subject: Maths
, asked on 30/3/18
Q.17 Out of 5 apples , 10 mangoes and 15 oranges , the number of ways distributing 15 fruits each to two persons is (a) 56 (b) 64 (c) 66 (d)72 Q.18 The number of divisors of the form 4n+ 1 , n
≥
0 of the number 10
10
11
11
13
13
is (a) 750 (b) 840 (c) 924 (d) 1024
Answer
1
Mauhid Usmani
Subject: Maths
, asked on 29/3/18
Questions no 67. A bag contains 3 black, 4 white and 2 red balls, all the balls being different. The number of selections of at most 6 balls containing balls of all the colours is
Answer
1
Mauhid Usmani
Subject: Maths
, asked on 26/3/18
Number of rectangles in figure shown, which are not squares is
(a) 159 (b) 160 (c) 161 (d) None
Answer
1
Chharishma.r.nayaka
Subject: Maths
, asked on 23/3/18
Plz ans soon..
30. In how many ways can 5 girls and 3 boys be seated in a row so that no two boys are together.
Answer
1
Ekta Ray
Subject: Maths
, asked on 23/3/18
Pls solve this
Illustration 6.93 Find the number of ways in which six persons can be seated at a round table, so that all shall not have the same neighbors in any two arrangements.
Answer
1
Ekta Ray
Subject: Maths
, asked on 22/3/18
Pls solve this
Illustration 6.86 Find the number of ways in which A A A B B B can be placed in the squares of Fig. 6.14 as shown, so that no row remains empty. Fig. 6.14
Answer
1
1
2
3
4
5
Next
What are you looking for?
Marked step:
(a) 159 (b) 160 (c) 161 (d) None
30. In how many ways can 5 girls and 3 boys be seated in a row so that no two boys are together.
Illustration 6.93 Find the number of ways in which six persons can be seated at a round table, so that all shall not have the same neighbors in any two arrangements.
Illustration 6.86 Find the number of ways in which A A A B B B can be placed in the squares of Fig. 6.14 as shown, so that no row remains empty. Fig. 6.14