11 times with a remainder of 5
1/4 = 5/20
2/5 = 8/20
8/20 + 5/20 = 13/20 has been spent
It would be = -3.81 * 10^-3
Answer:
No solution
Step-by-step explanation:

Lets consider the equation 2.
Here we multiply the LHS and RHS with (-1).

Hence,

When we add the equations we get,

As 0 doesn't equal to -1, answer is d) No solution
Answer:
2.75 hours
Step-by-step explanation:
Speed is 24km per hour (
), and the bus covered 66km.
We need to get a value of <em>km</em> with the rate (24/1) and distance (66) given.
We get:
.
The km cancel out, leaving us with 66/24 hours, or 2.75 hours.