A.40

B.50

** C.60**

D.65

## If an outlet pipe empties a full tank in 20 hrs then part of tank emptied in one hour.

A.3?20

B.2?5

C.1?10

**D.1?20**

## A man walked 15 kms from A to B at a uniform speed. If he were to increase his speed by 4 km/h he would have saved 60 min on the journey. Find his speed in km/h.

**A.6**

B.8

C.9

D.5

## If an inlet pipe fills a tank in 10 hrs then part of tank filled in 1 hr.

A.1?5

** B.1?10**

C.1?15

D.1?8

## A man started on a walk of 12 km after walking half the distance at x km/h he decreased his speed by 1/2 km/h. He completed his walk in 10 minutes later than he would have done if he had not decreased his speed. Find the value of x.

A.5

** B.4.5**

C.5.5

D.6

## Two cyclists do the same journey by traveling respectively at the rate of 9 and 19km an hour. Find the length of the journey when one takes 32 minutes longer than the other.

A.8.32 km

B.15.52 km

C.10.02 km

**D.9.12 km**

## An automobile passes city X at 9.55 AM and city Y at 10.15 AM. City X is 30 miles from city Y. What is the average rate of the automobile in mph?

A.10

B.30

** C.90**

D.120