English
Tamil Nadu Board of Secondary EducationHSC Science Class 11

There are 3 types of toy car and 2 types of toy train available in a shop. Find the number of ways a baby can buy a toy car and a toy train?

Advertisements
Advertisements

Question

There are 3 types of toy car and 2 types of toy train available in a shop. Find the number of ways a baby can buy a toy car and a toy train?

Sum
Advertisements

Solution

Number of types of Toy car = 3

Number of types of Toy Train = 2

Number of ways of buying a Toy car = 3 ways

Number of ways of buying a toy train = 2 ways

∴ By fundamental principle of multiplication,

Number of ways of buying a toy car and a toy train = 3 × 2 ways = 6 ways

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Combinatorics and Mathematical Induction - Exercise 4.1 [Page 165]

APPEARS IN

Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 4 Combinatorics and Mathematical Induction
Exercise 4.1 | Q 1. (ii) | Page 165

RELATED QUESTIONS

How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?


A coin is tossed 3 times and the outcomes are recorded. How many possible outcomes are there?


How many numbers between 100 and 1000 have the digit 7 exactly once?


A letter lock contains 3 rings, each ring containing 5 different letters. Determine the maximum number of false trials that can be made before the lock is opened?


In a test, 5 questions are of the form 'state, true or false'. No student has got all answers correct. Also, the answer of every student is different. Find the number of students appeared for the test.


How many numbers between 100 and 1000 have the digit 7 exactly once?


If numbers are formed using digits 2, 3, 4, 5, 6 without repetition, how many of them will exceed 400?


Three persons enter into a conference hall in which there are 10 seats. In how many ways they can take their seats?


A mobile phone has a passcode of 6 distinct digits. What is the maximum number of attempts one makes to retrieve the passcode?


Given four flags of different colours, how many different signals can be generated if each signal requires the use of three flags, one below the other?


Count the number of three-digit numbers which can be formed from the digits 2, 4, 6, 8 if repetitions of digits is allowed


How many three-digit numbers are there with 3 in the unit place? 
without repetition


How many three-digit odd numbers can be formed by using the digits 0, 1, 2, 3, 4, 5? if the repetition of digits is allowed


Count the numbers between 999 and 10000 subject to the condition that there are no restriction


Evaluate `("n"!)/("r"!("n" - "r")!)` when n = 10, r = 3


All the letters of the word PADMAPRIYA are placed at random in a row. The probability that the word PRIY A occurs without getting split is ______


Find the number of positive integers greater than 6000 and less than 7000 which are divisible by 5, provided that no digit is to be repeated.


Find the number of integers greater than 7000 that can be formed with the digits 3, 5, 7, 8 and 9 where no digits are repeated.


There will be only 24 selections containing at least one red ball out of a bag containing 4 red and 5 black balls. It is being given that the balls of the same colour are identical.


If the number of five-digit numbers with distinct digits and 2 at the 10th place is 336 k, then k is equal to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×