Question

1. There are 49 dogs signed up for a dog show. There are 36 more small dogs than large dogs. How many small dogs have signed up to compete?

2. Add 8.563 and 4.8292.

3. I am an odd number. Take away one letter and I become even. What number am I?

4. Using only an addition, how do you add eight 8’s and get the number 1000?

5. Sally is 54 years old and her mother is 80, how many years ago was Sally’s mother times her age?

6. There is a basket containing 5 apples, how do you divide the apples among 5 children so that each child has 1 apple while 1 apple remains in the basket?

7. You have a 3-litre bottle and a 5-litre bottle. How can you measure 4 litres of water by using 3L and 5L bottles?​

Answer 1

Answer :-

1. 42.5

To figure out how many small dogs are competing, you have to subtract 36 from 49 and then divide that answer, 13 by 2, to get 6.5 dogs, or the number of big dogs competing. But you’re not done yet! You then have to add 6.5 to 36 to get the number of small dogs competing, which is 42.5. Of course, it’s not actually possible for half a dog to compete in a dog show, but for the sake of this math problem let’s assume that it is.

2. 13.3922

Adding two decimals together is easier than it looks. Don’t let the fact that 8.563 has fewer numbers than 4.8292 trip you up. All you have to do is add a 0 to the end of 8.563 and then add like you normally would.

3. Seven (take away the ‘s’ and it becomes ‘even’).

4. 1000

888 + 88 + 8 + 8 + 8 = 1000

5. 41 years ago, when Sally was 13 and her mother was 39.

6. 4 children get 1 apple each while the fifth child gets the basket with the remaining apple still in it.

7.

Solution 1 :-

● First, fill 3Lt bottle and pour 3 litres into 5Lt bottle.

● Again fill the 3Lt bottle. Now pour 2 litres into the 5Lt bottle until it becomes full.

● Now empty 5Lt bottle.

● Pour remaining 1 litre in 3Lt bottle into 5Lt bottle.

● Now again fill 3Lt bottle and pour 3 litres into 5Lt bottle.

● Now you have 4 litres in the 5Lt bottle. That’s it.

Solution 2 :-

● First, fill the 5Lt bottle and pour 3 litres into 3Lt bottle.

● Empty 3Lt bottle.

● Pour remaining 2 litres in 5Lt bottle into 3Lt bottle.

● Again fill the 5Lt bottle and pour 1 litre into 3 Lt bottle until it becomes full.

● Now you have 4 litres in the 5Lt bottle.

That’s it.