Each of the questions given below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements is sufficient to answer the question. Read both the statements. Give answer
How many marks did Subodh obtain in Physics ?
I. The average marks of Subodh in History, Geography and Chemistry are 75.
II. His average marks in History, Geography and Physics are 78.
Statement I : Sum of marks in History, Geography and Chemistry
= $$3 \times 75 = 225$$
We cannot find physics marks from statement I alone
Statement II : Sum of marks in History, Geography and Physics
= $$3 \times 78 = 234$$
Again, from this statement alone, we cannot find physics marks.
Combining above statements, if we subtract equation(1) from (2), we get :
=> Physics - chemistry = 234 - 225 = 9
Again, we cannot find Physics marks even after combining both statements.
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