Advertisements
Advertisements
प्रश्न
In a bag, the number of one rupee coins is three times the number of two rupees coins. If the worth of the coins is ₹ 120, find the number of 1 rupee coins.
Advertisements
उत्तर
Let the number of two rupee coins be y.
Then, the number of one rupee coin is 3y.
Total money by two rupee coins = 2 × y = 2y
Total money by one rupee coin = 1 × 3y = 3y
Total worth of coins = ₹ 120
So, the equation formed is 2y + 3y = 120 ...[Given]
⇒ 5y = 120
`(5y)/5 = 120/5` ...[Dividing both sides by 5]
⇒ y = 24
∴ Number of two rupee coins = y = 24 and number of one rupee coins = 3y = 3 × 24 = 72.
APPEARS IN
संबंधित प्रश्न
People of Sundargram planted trees in the village garden. Some of the trees were fruit trees. The number of non-fruit trees was two more than three times the number of fruit trees. What was the number of fruit trees planted if the number of non-fruit trees planted was 77?
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
The number of 1st prizes are ______ and the number of 2nd prizes are ______.
A number is 7 more than one-third of itself.
After 25 years, Rama will be 5 times as old as he is now. Find his present age.
Anamika thought of a number. She multiplied it by 2, added 5 to the product and obtained 17 as the result. What is the number she had thought of?
In a class of 60 students, the number of girls is one-third the number of boys. Find the number of girls and boys in the class.
Twice a number added to half of itself equals 24. Find the number.
A girl is 28 years younger than her father. The sum of their ages is 50 years. Find the ages of the girl and her father.
Follow the directions and correct the given incorrect equation, written in Roman numerals:
Move one matchstick to make the equation valid. Find two different solutions.
The given figure represents a weighing balance. The weights of some objects in the balance are given. Find the weight of each square and the circle.
