Advertisements
Advertisements
प्रश्न
Find two numbers such that one of them is five times the other and their difference is 132.
उत्तर
Let one of the numbers be x.
∴ Second number = 5x
According to the question:
5x − x = 132
or, 4x = 132
or, `(4x)/4=132/4` [Dividing both the sides by 4]
or, x = 33
Thus, the required numbers are x = 33 and 5x = 5 × 33 = 165.
APPEARS IN
संबंधित प्रश्न
If 9 is added to a certain number, the result is 36. Find the number.
The sum of three consecutive natural numbers is 114. Find the numbers.
One out of two numbers is thrice the other. If their sum is 124, find the numbers.
A man is 4 times as old as his son. After 16 years he will be only twice as old as his son. Find their present ages.
The side length of the top of square table is x. The expression for perimeter is ______.
A wire is (7x – 3) metres long. A length of (3x – 4) metres is cut for use. Now, answer the following questions:
- How much wire is left?
- If this left out wire is used for making an equilateral triangle. What is the length of each side of the triangle so formed?
The sum of first n natural numbers is given by `1/2n^2 + 1/2n`. Find the sum of first 5 natural numbers.
The sum of squares of first n natural numbers is given by `1/6n(n + 1)(2n + 1)` or `1/6(2n^3 + 3n^2 + n)`. Find the sum of squares of the first 10 natural numbers.
The sum of the multiplication table of natural number ‘n’ is given by 55 × n. Find the sum of table of 19.
If = 2x + 3,
= `3/2x + 7` and
= x – 3 then find the value of:
`1/2` +
– 3