Arithmetical Reasoning Questions

The weights of 4 boxes are 20, 40, 60 and 90 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?

In a row of boys, Amit is ranked 12th from top and Ratan is 15th from bottom. They interchange their position. Ratan now becomes 37th from bottom. How many total boys are there in the row?

Which word comes first in the dictionary?

There are 45 trees in a row. The lemon tree is 20th from right end. What is the rank of lemon tree from left end?

A's weight is more than the weight of C, and A has the second highest weight. E weighs more than A. B weighs more than D. Who is the heaviest?

Which of the following interchanges in signs and numbers will make the given equation correct?
7 x 9 + 5 = 68

C has more money than E and E has more money than B. C is the second richest after A. Who has the least money out of A, B, C and E?

Arrange the following words as per order in the dictionary.
1. Incompatible
2. Incomparable
3. Incongruous
4. Inconsistent