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
Two numbers are in the ratio 5:3. If they differ by 18, what are the numbers?
Three consecutive integers add up to 51. What are these integers?
The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength?
Sum of two numbers is 74. One of the numbers is 10 more than the other. What are the numbers?
Three consecutive numbers whose sum is 12 are ______, ______ and ______.
The sum of two consecutive multiples of 10 is 210. The smaller multiple is ______.
Shikha’s present age is p years. Reemu’s present age is 4 times the present age of Shikha. After 5 years Reemu’s age will be 15p years.
There are 40 passengers in a bus, some with Rs. 3 tickets and remaining with Rs. 10 tickets. The total collection from these passengers is Rs. 295. Find how many passengers have tickets worth Rs. 3?
For what value of x is the perimeter of shape 186 cm?
Madhulika thought of a number, doubled it and added 20 to it. On dividing the resulting number by 25, she gets 4. What is the number?
