Q:
Study the following graph carefully and answer the questions that follow:
Water level of four major Rivers (in meters) in four different Months
1. what was the respective ratio between the level of River - C in September and the water level of River - B in June?
1. 91 : 101 2. 94 : 101 3. 51 : 103 4. None of these
2. If the danger level of all the four rivers is above 215 m, which river has not crossed the danger level in August but has crossed the danger level in July ?
1. River - A 2. River - B 3. River - C 4. River - D
3. What is the average water level of River - A in all the four months together ?
1. 224.50 m 2. 212.25 m 3. 210.75 m 4. 222.25 m
4. In which river and in which month respectively the water level is highest ?
1. River - C in August 2. River - D in September 3. River - B in July 4. River - D in August
5. If the water level of River - A in July is decreased by 20 percent, then what will be the water level of River - A in July ?
1. 156 m 2. 162 m 3. 164 m 4. 152 m
Answer
1. Answer : 4
Explanation : The water level of River-C in September = 184 and water level of River-B in June = 202
Required ratio = 184 : 202 => 92 : 101
2. Answer : 2
3. Answer : 3
Explanation : Average water level of River-A in all months == 210.75 m
4. Answer : 4
5. Answer : 3
Explanation : Water level of River-A in July after decreasing = = 41 x 4 = 164m
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