Page 112 - New Medley 4 Semester 1
P. 112

Example 27:  Write  the largest and the  smallest  number  of 5  digits
                                   using the digits 4, 2, 3, 8 and 5. Repetition of digits is

                                   allowed.

               Solution:           We have the digits 4, 2, 3, 8 and 5.

                                   First we will write the largest number.


                                   The largest of the given digits is ‘8’, so the largest number
                                   is 88888.


                                   Now let us write the smallest number.

                                   The smallest digit is ‘2’, so the smallest number is 22222.


               Example 28:  Write the smallest six digit number using the digits 5,

                                   7, 0, 3, 6 and 9. Repetition of digits is allowed.

               Solution:           We have the digits 5, 7, 0, 3, 6 and 9. The smallest digit

                                   is 0. But we cannot write 0 at lakhs place. So we write 3
                                   at lakhs place and the required number is  300000.


                                                        EXERCISE 1.7



                A.  Make the largest and the smallest numbers of 5 digits using the digits

                     given below. Repetition of digits is not allowed.
                     1.  7, 2, 4, 8, 1                                   2.  1, 3, 4, 9, 0


                B.  Make the largest and the smallest numbers of 5 digits using the digits
                     given below. Repetition of digits is allowed.

                     1.  3, 2, 5, 6, 8                                   2.  0, 2, 3, 6, 4


                C.  Make the largest and the smallest 6 digit numbers using the given

                     digits. You may repeat the digits.
                     1.  5, 3, 4, 6, 8, 1                                2.  9, 5, 6, 3, 8, 2


                D.  Make the largest and the smallest 6 digit numbers using each digit only
                     once.

                     1.  7, 6, 3, 9, 2, 5                                2.  4, 3, 1, 8, 6, 8




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