Question

IN KALPANA'S SCHOOL ONE PERSON WILL CONTACT 4 PEOPLE AND EACH OF THOSE PEOPLE WILL CONTACT 4 OTHER PEOPLE,AND SO ON.HOW MANY PEOPLE WILL BE CONTACTED IN THE FIFTH ROUND?

Answer 1

Step-by-step explanation:

Round 1: One person will contact to four people = 4+1 = 5

Round 2: Four persons will contact to another 4 persons = 4×4 = 16

Round 3: Sixteen persons will contact to another 4 persons = 16×4 = 64

Round 4: 64 persons will contact to another 4 persons = 64×4=256

Round 5 : 256 persons will contact to another 4 persons = 256×4 = 1024

Total people will be contacted in 5th round = Round 1 + Round 2 + Round 3 + Round 4 + Round 5

= 5+16+64+256+1024

= 1365

Answer 2

Hope it will help you