1.

In a class test, Renu score (out of 50) marks, which is equal to the coefficient of x2 in the expansion of (1+x)7. But she reported to her parents that she had scored 70% marks in the test. (i) What is the actual score of Renu in the test? (ii) What value is shown here by Renu?

Answer» In a class test, Renu score (out of 50) marks, which is equal to the coefficient of x2 in the expansion of (1+x)7. But she reported to her parents that she had scored 70% marks in the test.
(i) What is the actual score of Renu in the test?
(ii) What value is shown here by Renu?


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