Common Information
Five people A, B, C, D and E went to a shop. In that shop, only five different types (P, Q, R, S and T) of pens were sold. Each of the five people purchased exactly four pens, each of a different type. Also, no two of the people purchased the same set of four different types of pens. The following bar graph provides information about the price (in Rs.) at which one pen of each of the given types is sold in the shop.
Additional information given:
I. The price of the type of pen that was not purchased by A was Rs.10 more than the price of the pen, which was not purchased by C.
II. The price of the type of pen that was not purchased by B was Rs.10 more than the price of the pen, which was not purchased by D.
Q31. 
Common Information Question: 2/4 How many of the following could be the total amount (in Rs.) spent by D on purchasing the four pens? I. 120 II. 110 III. 100 IV. 90 
A.  1 

B.  2 

C.  3 

D.  4 