Question

The distance between the reshis home and her office
is 600 km. Reshu drives her car at uniform speed every
day but one day when she covered the 2/3 distance from
her home towards the office, she remembers that her
purse leaves at home. She turns back & drives at 3/2
at her usual speed. She picks her purse and return
towards office at 2 times faster than the orginal speed.
If she reached office by 20 minutes earlier then her
original speed is:​

Answer 1

Answer:

Find the value of K for which the system equation has infinitely many solution 2x +(k-2) y = k and 6x +(2k-1) y = 2k +5