Advertisements
Advertisements
Question
After 18 years, Swarnim will be 4 times as old as he is now. His present age is ______.
Advertisements
Solution
After 18 years, Swarnim will be 4 times as old as he is now. His present age is 6 years.
Explanation:
Let Swarnim’s present age be x year.
After 18 year, Swarnim’s age = (x + 18) year
According to the question,
x + 18 = 4x
⇒ x – 4x = –18 ...[Transposing 4x to LHS and 18 to RHS]
⇒ –3x = –18
⇒ `(-3x)/(-3) = (-18)/3` ...[Dividing both sides by –3]
∴ x = 6
Hence, Swarnim’s present age is 6 year.
APPEARS IN
RELATED QUESTIONS
Baichung’s father is 26 years younger than Baichung’s grandfather and 29 years older than Baichung. The sum of the ages of all the three is 135 years. What is the age of each one of them?
Lakshmi is a cashier in a bank. She has currency notes of denominations Rs 100, Rs 50 and Rs 10, respectively. The ratio of the number of these notes is 2:3:5. The total cash with Lakshmi is Rs 4, 00,000. How many notes of each denomination does she have?
The present age of Sahil's mother is three times the present age of Sahil. After 5 years their ages will add to 66 years. Find their present ages.
Bansi has 3 times as many two-rupee coins as he has five-rupee coins. If he has in all a sum of Rs. 77, how many coins of each denomination does he have?
The sum of three consecutive multiples of 7 is 357. Find the smallest multiple.
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.
Sum of the ages of Anju and her mother is 65 years. If Anju’s present age is y years then her mother’s age before 5 years is (60 – y) years.
The sum of four consecutive integers is 266. What are the integers?
Kusum buys some chocolates at the rate of Rs. 10 per chocolate. She also buys an equal number of candies at the rate of Rs. 5 per candy. She makes a 20% profit on chocolates and 8% profit on candies. At the end of the day, all chocolates and candies are sold out and her profit is Rs. 240. Find the number of chocolates purchased.
On dividing Rs. 200 between A and B such that twice of A’s share is less than 3 times B’s share by 200, B’s share is?
