Advertisements
Advertisements
प्रश्न
A bag contains Rs 1800 in the form of Rs 1 , Rs 2 and Rs 5 ooins. The ratio of the number of the respective coins is 3: 7: 11. Find the total number of ooi ns in the bag.
Advertisements
उत्तर
Let the number of Re 1, Rs 2 and Rs 5 coins be 3x, 7x and 11x
The sum of their value =
3x+ (2 × 7x) + (5 × 11x) = Rs 1800
3x + 14x + 55x = 1800
72x = 1800
x = 25
3x =3 × 25 = 75
7x = 7 × 25 = 175
11 x = 11 x 25 = 275
total = 75 + 175 + 275 = 525
Total number of coins = 525
APPEARS IN
संबंधित प्रश्न
Express the given ratio in its simplest form: 6 months: `1 1/3` years
₹ 300 is divided between A and B in such a way that A gets half of B. Find:
- the ratio between the shares of A and B.
- the share of A and the share of B.
Shubham’s age today is 12 years and his father’s is 42 years. Shubham’s mother is younger than his father by 6 years. Find the ratio of Shubham’s age to his mother’s age when Shubham was 10 years old.
The 1st, 2nd, and 4th terms of a proportion are 12, 21, and 14 respectively. Its third term is
If `a/b = c/d = e/f`, prove that each ratio is `[(2a^3 + 5c^3 + 7e^3)/(2b^3 + 5d^3 + 7f^3)]^(1/3)`
Find the ratio of 90 cm to 1.5 m.
In a box, the ratio of red marbles to blue marbles is 7 : 4. Which of the following could be the total number of marbles in the box?
A ratio can be equal to 1.
Find the ratio of the following:
55 paise to ₹ 1
Out of 1800 students in a school, 750 opted basketball, 800 opted cricket and remaining opted table tennis. If a student can opt only one game, find the ratio of number of students who opted basketball to the total number of students.
