Advertisements
Advertisements
प्रश्न
Fifteen years from now Ravi’s age will be four times his present age. What is Ravi’s present age?
Advertisements
उत्तर
Let Ravi’s present age be x years.
Fifteen years later, Ravi’s age = 4 × His present age
x + 15 = 4x
On transposing x to R.H.S, we obtain
15 = 4x − x
15 = 3x
On dividing both sides by 3, we obtain
`15/3 = (3x)/3`
5 = x
Hence, Ravi’s present age = 5 years
संबंधित प्रश्न
The sum of three consecutive multiples of 8 is 888. Find the multiples.
The perimeter of a rectangle is 13 cm and its width is `2 3/4` cm. Find its length.
Arpita’s present age is thrice of Shilpa. If Shilpa’s age three years ago was x. Then Arpita’s present age is ______.
The sum of two consecutive multiples of 10 is 210. The smaller multiple is ______.
The number of boys and girls in a class are in the ratio 5 : 4. If the number of boys is 9 more than the number of girls, then number of boys is 9.
If the sum of two consecutive numbers is 93 and one of them is x, then the other number is 93 – x.
The sum of three consecutive odd natural numbers is 69. Find the prime number out of these numbers.
Two equal sides of a triangle are each 4 m less than three times the third side. Find the dimensions of the triangle, if its perimeter is 55 m.
An employee works in a company on a contract of 30 days on the condition that he will receive Rs. 120 for each day he works and he will be fined Rs. 10 for each day he is absent. If he receives Rs. 2300 in all, for how many days did he remain absent?
For what value of x is the perimeter of shape 186 cm?
