What is the downstream speed of the boat?

I. The speed of the boat is 15 km/hr.

II. The boat rows up a river 30 km in 6 hours.

we know that speed = distance/Time From statement II Upstream speed = 30/6 = 5 km/hr From both I and II, Speed of boat = 1/2 (Downstream + upstream speed) 15 = 1/2 (downstream + 5) 30 = downstream +5 Downstream speed = 25 km/hr Therefore, both statement I and statement II together are necessary to answer the question.

- How many students from Institute R got placement? I. The number of students studying in Institute Q and R are in the ratio of 5:7. II. 55% of the students studying in institute R got placement.
- How much time will Bus A take to cross Bus B (from the moment they meet) running in opposite directions (towards each other)? I: The respective ratio of speeds of Bus A and Bus B is 9 : 5. The sum of the lengths of Bus A and Bus B is 1400 metre. II: Bus A can cross a signal pole in 15 seconds. It can cross 750 metre long stand in 20 seconds.
- What is the area of the hall? I: Total cost (Labour + Material) of flooring the hall is Rs. 29,000 II: Labour cost of flooring the hall is Rs. 6,000. III: Material cost of flooring per sq. metre is Rs. 250.
- What is the average number of schools number of schools(constructed, destroyed, redeveloped ) in all the state together?
- How much time does A take alone to complete the work? I. B alone takes 45 days, while A and B together take 15 days to complete the work. II. A and B can do a piece of work in 8 days, and B and C can do the same work in 12 days.
- There are 7 people in a group. Average age of the group decreases by 5 when two more people join the group. Find the average age of the new group. Statement I: Sum of the ages of the two people who joined later is 25 yrs. Statement II: Total of the ages of people originally was 245 yrs.
- What was the profit earned by selling an article? Statement I : The article was sold for Rs 850 after getting a discount of 15% on the labelled price. Statement II : A profit of 4% is made on the labelled price in selling that article.
- Find the rate percent? I. The ratio of difference of C.I and S.I for 3 years and 2 years is 19:6. II. The difference between C.I and S.I on a certain sum of money of Rs 5,000 for 2 years is Rs 72.
- What is the total number of players who play for Kolkata Knight Riders and Chennai Super Kings?
- If diameter of a circle is increased by 25%, what will be the area of the circle? I. Circumference of the circle is 88 m. II. Area of the circle is 616 sq.m.

More Data Interpretation Questions

×