Question

guess the number; ur frnd uses an integer between 0 and hundred you have to find out the number by asking questions but your friend can only say yes or no what strategy with you

Answer 1

$\huge\bf\underline\red{Answer࿐}$

Let my friend choosing 73; then my questions maybe like this.

Q:- Does it lie in the first 50 numbers?

A:- No

Q:- Does it lie between 50 and 60?

A:- No

Q:- Does it lies between 60 and 70?

A:- No

Q:- Does it lie between 70 and 18?

A:- Yes[then my guess would be"it is a number from 70 to 80]

Q:- Is it an even number?

A:- No [my guess: it should be one of the numbers 71, 73, 75, 77 and 79]

Q:-Is it a prime number?

A:- Yes[my guess: it may be 71, 73 or 79]

Q:- Is it less than 75?

A:- Yes[my guess: it may be either 71 or 73]

Q:- Is it less than 72?

A:- No

Then the number is 73.

Therefore strategy is

$\rightarrow$Use number properties such as even, composite and prime to determine the number.

Answer 2

Step-by-step explanation:

Let my friend choosing 73; then my questions maybe like this.

Q:- Does it lie in the first 50 numbers?

A:- No

Q:- Does it lie between 50 and 60?

A:- No

Q:- Does it lies between 60 and 70?

A:- No

Q:- Does it lie between 70 and 18?

A:- Yes[then my guess would be"it is a number from 70 to 80]

Q:- Is it an even number?

A:- No [my guess: it should be one of the numbers 71, 73, 75, 77 and 79]

Q:-Is it a prime number?

A:- Yes[my guess: it may be 71, 73 or 79]

Q:- Is it less than 75?

A:- Yes[my guess: it may be either 71 or 73]

Q:- Is it less than 72?

A:- No

Then the number is 73.

Therefore strategy is

→ Use number properties such as even, composite and prime to determine the number.