Think of a number subtract 18 from it divide it by 3 the result is $-4$, find the number.

Academic Mathematics NCERT Class 8

Given:

Subtract $18$ from a number, divide it by 3 the result is $-4$.

To do:

We have to find the number.

Solution:

Let the numbers be $x$.

According to the question,

$(x-18)\div3=-4$

$\frac{x}{3}-\frac{18}{3}=-4$

$\frac{x}{3}=-4+6$

$x=3(2)$

$x=6$

Therefore, the required number is $6$.

Tutorialspoint

Simply Easy Learning

Updated on: 10-Oct-2022

32 Views

Think of a number subtract $\frac{5}{2}$ from it multiply it by 8 then the result is 3 times a number. Find the number.
Amina thinks of a number and subtracts $52$ from it. She multiplies the result by $8$. The result now obtained is $3$ times the same number she thought of. What is the number?
Amina thinks of a number and subtracts \( \frac{5}{2} \) from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. What is the number?
Which of the following statements are true?(i) If a number is divisible by 3, it must be divisible by 9.(ii) If a number is divisible by 9, it must be divisible by 3.(iii) If a number is divisible by 4, it must be divisible by 8.(iv) If a number is divisible by 8, it must be divisible by 4.(v) A number is divisible by 18, if it is divisible by both 3 and 6.(vi) If a number is divisible by both 9 and 10, it must be divisible by 90.(vii) If a number exactly divides the sum of two numbers, it must exactly divide the numbers separately.(viii) If a number divides three numbers exactly, it must divide their sum exactly.(ix) If two numbers are co-prime, at least one of them must be a prime number.(x) The sum of two consecutive odd numbers is always divisible by 4.
The sum of the digit of a 2 digit number is 6 . On reversing it\'s digits, the number is 18 less than the original number find the number
A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4.
Which of the following statements are true?(a) If a number is divisible by 3, it must be divisible by 9.(b) If a number is divisible by 9, it must be divisible by 3.(c) A number is divisible by 18, if it is divisible by both 3 and 6.(d) If a number is divisible by 9 and 10 both, then it must be divisible by 90.(e) If two numbers are co-primes, at least one of them must be prime.(f) All numbers which are divisible by 4 must also be divisible by 8.(g) All numbers which are divisible by 8 must also be divisible by 4.(h) If a number exactly divides two numbers separately, it must exactly divide their sum.(i) If a number exactly divides the sum of two numbers, it must exactly divide the two numbers separately.
Find the smallest 4 digit number which is exactly divisible by 18, 24, 36.
$\frac{1}{2}$ is subtracted from a number and the difference is multiplied by 4. If 25 is added to the product and the sum is divided by 3, the result is equal to 10. Find the number.
One number is three times another. If the larger number is subtracted from $48$ the result is $4$ less than the smaller number subtracted from $32$ find the larger number.
A two-digit number is 3 more than 4 times the sum of its digits. If 18 is added to the number, the digits are reversed. Find the number.
If you subtract $\frac{1}{2}$ from a number and multiply the result by $\frac{1}{2}$, you get $\frac{1}{8}$. What is the number?
Find the greatest 3 digit number which is divisible by the number 4 ,5 and 6.
A two-digit number is 4 more than 6 times the sum of its digits. If 18 is subtracted from the number, the digits are reversed. Find the number.
A number is doubled and 9 is added. If the result is trebled it becomes 75. What is that number?

Kickstart Your Career

Get certified by completing the course

Get Started

Advertisements