Question

A king wanted to reward his advisor, a wise man of the kingdom. So he asked the wiseman to name his own reward. The wiseman thanked the king but said that he would ask only for some gold coins each day for a month. The coins were to be counted out in a pattern of 1 coin for the first day, 3 coins for the second day, 5 coins for the third day and so on for 30 days. Without making calculations, find how
many coins will the advisor get in that month?​

Answer 1

ANSWER...

900 COINS

EXPLANATION...

THE TOTAL AMOUNT HE WILL GET AT THE END = 1 + 3 + 5...

AS WE SEE IT IS ODD NATURAL NUMBERS SERIES ....

NUMBER OF TERMS ( n ) = 30

SUM OF ODD NATURAL NUMBERS = n²

= 30²

= 900...

SO , HE WILL GET 900 COINS IN THAT MONTH....