Page 120 - year book 22-23(22.08)

It's Math Time!

Here Are Some Puzzles to Puzzle You!
1. 8 apples are there, you take 4 away and then you return 1 apple. How many apples do you

have?
2. You have 50 biscuits. How many times can you subtract 5 from 50 biscuits?
3. Get an even number from 7 without adding, subtracting, multiplying, or dividing any number?
4. The speed of a train is 3m/sec and it takes 10secs to cross a lamp post. What is the length of

the train?
5. A carton contains some apples which were divided into two equal parts and sold to 2 traders
Tarun and Tanmay. Tarun had two fruit shops and decided to sell an equal number of apples on

both shops A and B respectively. Tanya visited shop A and bought all the apples in the shop for
her kids. But one apple was left after dividing all the apples among her children. Each child
got one apple, find the minimum number of apples in the carton?

Answers

1. You got 4 apples for yourself and returned 1 apple. Therefore 4 - 1 = 3 apples
2. Once only because after that it will not be 50 biscuits. As you subtract 5 biscuits it will be 45
and not 50 anymore.
3. SEVEN - S = EVEN
4. The Train covers 3m in 1 sec. Therefore in 10 secs it will cover = 3m * 10 sec = 30 m
In 10 sec, the train of length 30m will cross the lamp post.
5. Let the number of children be X
Therefore, the number of apples bought by Tanya = ( X + 1)
The total number of apples in the shop A = ( X + 1)
Total number of apples bought by Trader Tarun = 2( X + 1 )
Total number of apples in the carton = 4( X + 1 )
Now, minimum no of apples in carton:
We assume:
X is not equal to 0
X is not equal to 1 ( Tanya has children not a single child)
X equal to 2 (Tanya has a minimum of 2 children)
When X = 2
4( X + 1 )
= 4( 2 + 1 )
= 12
Thus, minimum of 12 apples
Monika D

10- F