Question

maths riddle of class 8

Answer 1

Answer:

name  the highest 5 digit number which is divisible by 108, 54 and 27

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Step-by-step explanation:

Answer 2

Answer:

3 Challenging Maths Riddles with Answers

1. 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?

12 Apples

Explanation:

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

2. A monkey is trying to climb a coconut tree. He takes 3 steps forward and slips back 2 steps downward. Each forward step is 30 cm and each backward step is 40cm. How many steps are required to climb a 100cm tree?

50 steps

Explanation:

Each time the Monkey tries to go up:

Climbs Upward = 3 X 30cm = 90 cm (takes 3 steps)

Slips Downward = 2 X 40cm = 80cm (takes 2 steps)

Total number of steps taken in each forward attempt = 3 steps + 2 steps = 5 steps

Effectively moves 10 cm upwards (90cm - 80cm = 10cm)

100cm/10cm = 10

Therefore, the monkey needs to cover 10 X 5 steps = 50 steps to reach the top

3. A construction site requires at least 5 laborers to get a job done in 12 days. How many days will it take if 12 laborers are hired for the same job?

5 days

Explanation:

Let X be the amount of work to be done

Let Y be the number of days taken by 12 laborers

Equation of work done by 5 laborers:

X/5 = 12 days

X = 60

Equation of work done by 12 laborers:

X/12 = Y

60/12 = Y

Y= 5

Step-by-step explanation:

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