In a study of interactions between plants, ants and caterpillars, the following experimental treatments were imposed: i) Control (both ants and caterpillars are present); ii) Ant removal; iii) Caterpillar removal; iv) Ant and caterpillar removal. Plus (+) indicates presence and minus (-) indicates absence on plants. The results for plant performance (growth) from this experiment  are shown in the figure below. Plant performance in all treatments were significantly different from each other. Based on these results, which of the following inferences is correct?

#Question id: 5379

#General Aptitude

The average weight of three brothers is 68 kg . If their weights are in the ratio 3:4:5, the weight of the heaviest of the three brothers is.

#Question id: 5380

#General Aptitude

Out of three numbers the second number is twice the first and also one third of third number.If the average of three numbers is 54. Find the second number.

#Question id: 5381

#General Aptitude

A man travels from destination A and B by car to an average speed of 48 km/h and returns on his bike with an average speed of 16 km/h .Find his average speed for the entire journey

#Question id: 5382

#General Aptitude

The average of weight of 5 persons is decreased by 2 kg when one of the men whose weight is 50kg is replaced by a new man. The weight of the new man is.

#Question id: 5383

#General Aptitude

12 yr ago the average age of a husband and a wife was 20 yr .The average remains the same today when they have two children. What is the present age of the youngest child if they differ in age by 2 yr.

#Question id: 5384

#General Aptitude

The average of 100 numbers is 50. It is found that while calculating the average two numbers namely 81 and 66 were wrongly read as 18 and 6 the correct average is.