Arithmetical Reasoning Questions

Find the missing term in the following question:-

Select the missing number from the given options?

Select the missing number from the given responses

Select the missing number from the given options?

Select the missing number?

Select the missing number?

The weights of 4 boxes are 90, 40, 80 and 50 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?

Among four cars, weight of T1 is twice the weight of T2. Weight of T3 is half of the weight of T2. T4 is 25 kg heavier than T2, but 25 kg lighter thanT1. What is the difference (in kg) between the weight  of T4 and T3?