Question

आप सौरभ हैं। आप कुछ नव प्रकाशित पुस्तकें मँगवाने के लिए नेशनल बुक ट्रस्ट, ग्रीन पार्क, नई दिल्ली के व्यापार प्रबंधक को पत्र लिखिए।​

Answer 1

Answer:

I have not understood question

Answer 2

Explanation:

Find the number of integers between 1000 and 4000 which can be formed by using the digits 1 ,

2, 3 and 4

a) if the digits can be used only once.

b) if each digits may be used more than once.Find the number of integers between 1000 and 4000 which can be formed by using the digits 1 ,

2, 3 and 4

a) if the digits can be used only once.

b) if each digits may be used more than once.