self Maths Puzzle

A car driver, driving in a fog, passes a pedestrian who was walking at the rate of 2 km/h in the same direction. The pedestrian could see the car for 6 minutes and it was visible to him up to a distance of 0.6 km. What was the speed of the car ?
A 30 km/h
B 15 km/h
C 20 km/h
D 8 km/h

Read Solution (Total 4)

self Other Question

PA and PB are tangents to a circle at A and B respectively and the chord BC is
parallel to tangent PA. If AC = 6 cm, and length of the tangent AP is 9 cm, then what is the length of the
chord BC?
There is a safe with a 6 digit number as the key.The 6th digit is 3 lesser than the first digit. The 4th digit is 4 greater than the second digit, while the 3rd digit is 3 less than the 2nd digit. The 1st digit
is thrice the 5th digit. There are 3 pairs whose sum is 11. Find the number.