Shishu Sansaar | Mathematical Games-Answers-1
Add the first number and last number, Then multiply it with the half of the last number. For example:
addition of first and last
number: 1 + 10 = 11
Answer to Game No 2: Laddoo for Guests
These questions are solved from the end.
The 5th guest ate 16 Laddoo, it means the 4th guest left 8 Laddoo.
1st guest was offered 31 Laddoo, he ate 16, left 15
Answer to Game No 3: Telling the Addition of 5 Lines of 5 Digits Each Without Adding Them
Tell your friends that you could tell them the addition of 5 lines of 5 digit numbers without adding them. The condition is that they could write first 3 lines but the last 2 lines you will write.
So ask your partner to write a number of 5 digits. Now you draw a horizontal line a bit below (leaving the space for other 4 lines) and write a number thus: Subtract 2 from that number (or from the last 2 digits) and write that number starting with 2.
Now ask him to write the other two lines of 5 digit numbers below the first one. Now it is your turn to write the last two lines. Write your first line thus, that the friend's 2nd line and your line add to 99999. In the same way you write your second line too making the addition of friend's 3rd line and yours as 99999. Now the addition of all these 5 lines will have the same addition as you wrote before. Example:
Ram's first number
In the same way you can add 7 lines, or 9 lines, or 11 lines. In 7 lines, subtract 3 and keep 3 before the addition. In 9 lines, subtract 4 and keep 4 before the addition. In 11 lines subtract 5, and keep 5 before the addition. Leaving the first line aside, your lines and your friend's line must be of equal number. And your lines must be the complementary lines to his making each line as 99999.
Answer to Game No 4: How Mamy Chapaatiyaan
Law: Whatever number of people are involved in the game, multiply that
number with the same number, same number of times, such as:
Now whatever number of people are there, subtract 1 from that number, and subtract
the resultant from the above number
Now keep dividing it among the number of people:
79 x 1/3 = 26 for Ram, 1 remaining for dog, 52 were kept
Raam ate total Chapaatiyaan 26 + 7 = 33
Answer to Game No 5: How to Arrange Horses?
There were 32 horses which were standing like this:
Now remained 28 horses, they were arranged like this:
When then they were 36 horses, they were arranged like this:
Now Ram could count 12 horses from every side every time. Thus he could not know when the horses were taken away and when the horses were returned.
Created by Sushma Gupta on January 15, 2002
Modified on 06/03/13