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CBSE Class 11-science Answered

In how many ways can 5 person sit in acar,2 including the driver in the front seat and 3 in the back seat,if 2 particular persons do not know driving
Asked by Kunmunsahoo.2012 | 26 Feb, 2015, 11:10: PM
answered-by-expert Expert Answer
G i v e n space t h a t space o u t space o f space 5 space p e r s o n s comma space 2 space p e r s o n s space d o space n o t space k n o w space d r i v i n g. T h u s comma space o n l y space 3 space p e r s o n s space c a n space d r i v e space t h e space c a r. T h u s comma space t h e space n u m b e r space o f space w a y s space f o r space t h r e e space p e r s o n s space t o space d r i v e space t h e space c a r space i s space C presuperscript 3 subscript 1. A p a r t space f r o m space t h e space d r i v e r space 4 space p e r s o n s space c a n space s i t space i n space t h e space p a s s e n g e r space s e a t s. T h u s comma space t h e space n u m b e r space o f space w a y s space f o r space f o u r space p e r s o n s space t o space s i t space i n space p a s s e n g e r space s e a t s space i s space 4 factorial T h e r e f o r e comma space t h e space t o t a l space n u m b e r space o f space w a y s space i n space t h e space d e s i r e d space w a y equals 4 factorial cross times C presuperscript 3 subscript 1 equals 4 cross times 3 cross times 2 cross times 1 cross times 3 equals 72
Answered by Vimala Ramamurthy | 27 Feb, 2015, 08:58: AM

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CBSE 11-science - Maths
if npr-1/a=npr/b=npr+1/c then the value of b square/a(b+c)
Asked by tharshini8456157 | 27 Nov, 2023, 10:32: PM
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CBSE 11-science - Maths
the number of words which can be formed out of the letters of the word PARTICLE so that vowels occupy even place is
Asked by ismayilpmamu | 09 Apr, 2020, 10:10: PM
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CBSE 11-science - Maths
How many words can be formed by taking 4 letters at a time out of the letters of the words MATHEMATICS? 
Asked by Kashifimam866 | 20 Feb, 2019, 05:58: AM
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CBSE 11-science - Maths
Find the no. Of arrangements  of the letters of the  word Delhi if e always  comes before i.
Asked by Sh1989kishore | 22 Oct, 2018, 10:12: PM
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CBSE 11-science - Maths
From a group of 15 cricket players, a team of 11 players is to be chosen. In how many ways can this be done?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 11-science - Maths
In how many ways can 5 girls and 3 boys be seated in a row so that no two boys are together?
Asked by Topperlearning User | 13 Sep, 2016, 02:58: AM
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CBSE 11-science - Maths
In how many ways can 9 persons sit around a table so that all shall not have the same neighbours in any two arrangements?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 11-science - Maths
How many triangles can be obtained by joining 12 points, five of which are collinear?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 11-science - Maths
A student has to answer 10 questions, choosing at least 4 from each of part A and part B. If there are 6 questions in Part A and in part B, in how many ways can the student choose 10 questions?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 11-science - Maths
If 8 parallel lines in a plane are intersected by a family of 10 parallel lines. Find the number of parallelograms formed?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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