Tag: math & puzzles

To solve this question, the user needs to know basic arithmetic, the concept of multiplication and subtraction.

Let the sister's age be x.

Given, the boy is 4 years old and his sister is three times as old as he is. Therefore:

x = 3(4) = 12

So, the sister's current age is 12 years.

When the boy is 12 years old, it means that 8 years have passed since he was 4 years old. At that time, his sister's age would be:

x + 8 = 12 + 8 = 20

Therefore, the correct answer is:

The Answer is: C. 20.

To solve this analogy, the user needs to understand the relationship between water and glass. Water is typically contained within a glass, so the relationship is one of containment or enclosure. Therefore, the word that fills the blank should have a similar relationship with the word "letter," which is the second term in the analogy.

Now, let's go through each option and explain why it is right or wrong:

A. Envelope: This option is correct. Just as water is contained within a glass, a letter is often contained within an envelope. Therefore, A is the correct answer.

B. Stamp: This option is incorrect because a stamp is not related to a letter in the same way water is related to glass. A stamp is used to send a letter, but it's not a container for a letter.

C. Pen: This option is incorrect because a pen is not related to a letter in the same way water is related to glass. Although a pen is used to write a letter, it does not enclose or contain the letter in any way.

D. Mail: This option is incorrect because mail is not related to a letter in the same way water is related to glass. Mail is a general term that can refer to a variety of things, including letters, packages, and advertisements.

The Answer is: A. Envelope

To solve this question, the user needs to know the definition of vowels and identify the seventh vowel in the given sentence.

The vowels are a, e, i, o, and u.

Now, let's count the vowels in the sentence to determine the seventh vowel:

"The seventh vowel appearing in this sentence is the letter __________."

There are a total of 19 letters in this sentence. Counting from the beginning, we have:

1. "The" - no vowels
2. "seventh" - two vowels (e, e)
3. "vowel" - two vowels (o, e)
4. "appearing" - three vowels (a, e, i)
5. "in" - one vowel (i)
6. "this" - one vowel (i)
7. "sentence" - three vowels (e, e, e)

Therefore, the seventh vowel appearing in this sentence is the letter "e".

The Answer is: B.