Home › TS EAPCET (Engineering) › Mathematics › Binomial Coefficients › In row 6, what is the sum of the three middle en…
In row 6, what is the sum of the three middle entries?
A35
B56
C50
D40
Answer & Solution
Correct answer: C. 50
Row 6 is 1, 6, 15, 20, 15, 6, 1 so the middle three give 15 + 20 + 15 = 50.
Related questions
A pizza shop offers 9 toppings. How many ways can a customer pick 3 different toppings?How many 4-element subsets does the set {1, 2, ..., 8} have?In the multiplicative formula, what does the denominator k factorial correct for?How many 5-bit words made of 0s and 1s contain exactly two 1s?In (1 + x) to the power n, the coefficient of which term is n choose k?If k is greater than n, how is the binomial coefficient commonly defined?The sum of squares of row n equals the middle entry of which row?What is 1 + 25 + 100 + 100 + 25 + 1, the sum of squares of row 5 entries?