GATE DA 2025 Paper 1 — page 21

Questions 61–63 of 65. Imported answers require review unless explicitly marked reviewed.

A bag contains 5 white balls and 10 black balls. In a random experiment,

balls are drawn from the bag one at a time with replacement. Let

denote the total number of black balls drawn in the experiment.

The expectation of

denoted by

______ (Round off to one decimal place)

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Consider the following tables, Loan and Borrower, of a bank.

Loan:

Borrower:

Query:

where

denotes natural join.

The number of tuples returned by the above relational algebra query is ______ (Answer in integer)

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Consider the following Python code snippet.

def f(a,b):

if (a==0):

return b

if (a%2==1):

return 2*f((a-1)/2,b)

return b+f(a-1,b)

print(f(15,10))

The value printed by the code snippet is ______ (Answer in integer)

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2025 · Paper 1