Answer:
Number of white marbles in the bag = 45
Step-by-step explanation:
Total number of marbles in the bag = 135
Ratio of white marble to transparent ones = 3 : 6
Let number of white marbles be
Then number of transparent marble will be
Total number of marbles will be
So we have.
Dividing both sides by 9.
∴
∴ Number of white marbles in the bag =
Given:
Consider the complete question is "A speed walker covered mi in
hour. How far will he walk in 3/4 hours if he walks twice as fast?"
A speed walker covered mi in
hour.
To find:
Distance covered by him if in 3/4 hour if he walks twice as fast.
Solution:
We have,
It means a speed walker covered mi in
hour.
If the speed is twice then he can cover double distance is same time.
Distance covered by him if in 3/4 hour if he walks twice as fast is
Therefore, distance covered by him is 9 mi.