Weights of two friends Ram and Shyam are in the ratio 4 : 5. If Ram's weight is increased by 10% and total weight of Ram and Shyam become 82.8 kg, with an increases of 15%. By what percent did the weight of Shyam has to be increased?

Correct Answer: 19%
Alligation mcq Solution 9
Now, given ratio of Ram and Shayam's weight = 4 : 5Hence, $$\frac{{x - 15}}{{15 - 10}} = \frac{4}{5}$$Or, x = 19%