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
Find the reciprocal ratio of 5 : 8
Is the ratio of 6 g and 15 g same as the ratio of 36 cm and 90 cm ?
The angles of a triangle are in the ratio 3 :2 : 7. Find each angle.
Find the mean proportional between `1/4 "and" 1/16`
Show that 2, 12 and 72 are in continued proportion.
Which of the following numbers are in continued proportion:
6, 12 and 24
If x : y = 2 : 3, and y : z = 4 : 7, find x : y : z
If a : b = 3 : 5, find (3a + 5b): (7a – 2b).
The ratio of the area of the shaded portion to that of the whole figure is ______.
A ratio is a relationship between two quantities of the same kind obtained by:
