Advertisements
Advertisements
प्रश्न
If (4x + 3y) : (3x + 5y) = 6 : 7, find x : y
Advertisements
उत्तर
7x (4x + 3y) = 6x (3x + 5y)
28x + 21y = 18x + 30y
28x − 18x = 30y − 21y
10x = 9y
`"x"/"y"=9/10`
∴ x : y = 9 : 10
संबंधित प्रश्न
If 3A = 4B = 6C, find: A : B : C.
If m : n is the duplicate ratio of m + x : n + x; show that x2 = mn.
Find the reciprocal ratio of e following :
a3b2 : a2b3
Two numbers are in the ratio 5: 7. Their difference is 10. Find the numbers.
Reduce the following ratio to their lowest term:
4 weeks : 49 days
In winter, a school opens at 10 a.m. and closes at 3.30 p.m. If the lunch interval is of 30 minutes, find the ratio of lunch interval to total lime of the class periods.
15 m : 40 m = 35 m : 65 m
When Chinmay visted chowpati at Mumbai on a holiday, he observed that the ratio of North Indian food stalls to South Indian food stalls is 5 : 4. If the total number of food stalls is 117, find the number of each type of food stalls.
There are 20 girls and 15 boys in a class. What is the ratio of number of girls to the number of boys?
There are 102 teachers in a school of 3300 students. Find the ratio of the number of teachers to the number of students.
