Page 104 - New Medley 3 Semester 1

EXERCISE 1.7

A. Tick the smaller in each of the following pairs.

1. 7263, 5200 2. 8132, 9987

3. 2075, 2058 4. 2147, 2143

B. Tick the greater in each of the following pairs.

1. 5699, 5600 2. 4762, 5762
3. 5299, 5298 4. 8862, 8865

C. Arrange the following in descending order.

1. 6005, 6098, 5123, 5286 , , ,

2. 7529, 7326, 7726, 7820 , , ,

D. Arrange the following in ascending order.

1. 3873, 3874, 3865, 3880 , , ,

2. 4200, 4231, 4296, 4900 , , ,

Largest and Smallest Numbers Using Given Digits

Example 16: Make the largest and smallest number using each of

the digits 2, 0, 6, 3 exactly once.

Solution: We have the digits 2, 0, 6 and 3.

First we will write the largest number.

Let us arrange them in decreasing order: 6, 3, 2 and 0

The required number is 6320.

Now let us write the smallest number.

Let us arrange the digits in increasing order: 0, 2, 3 and 6

But we cannot put 0 in the thousands place as this will
make our number a three digit number.

So, we interchange 0 and 2

0 2, 3 and 6

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