GATE 2017 ME (ME1) – Question 7

General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 2 marks · Multiple choice

In the subtraction below, each underscore is one missing digit. What is the sum of the missing digits?

  5____
- 48_89
-------
   1111

8
10
11
Cannot be determined

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (D) Cannot be determined

Explanation

Write the subtraction as $5abcd-48e89=1111$. Then $5abcd=49200+100e$. A leading digit of 5 permits $e=8$ or 9. The valid completions are $50000-48889=1111$ and $50100-48989=1111$. The missing-digit sums are respectively 8 and 10, so the sum is not unique. Select D.

More Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation questions

GATE 2026 CS (CS1) Q3 – Consider a knock-out women’s badminton singles tournament where there are no ties. The…
GATE 2026 CS (CS1) Q4 – A student needs to enroll for a minimum of 60 credits. A student cannot enroll for more…
GATE 2026 CS (CS1) Q8 – For positive real numbers S and K, the function H K(S) is defined as H K(S) = (S - K, 0).…
GATE 2026 CS (CS1) Q10 – An unbiased six-faced dice whose faces are marked with numbers 1, 2, 3, 4, 5, and 6 is…
GATE 2026 CS (CS2) Q3 – A day can only be cloudy or sunny. The probability of a day being cloudy is 0.5,…
GATE 2026 CS (CS2) Q4 – The values of Stock A and Stock B on a particular day are Rs. 50 and Rs. 80, respectively.…

All Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation questions →