Correct option is B
Given:
Number = 1780
Concept Used:
To find the least number, check the square root of 1780 and the nearest perfect square.
Solution:
Square root of 1780 ≈ 42.19
Nearest perfect square = 43^2 = 1849
Therefore, 1849 - 1780 = 69
All Courses
Question
Find the least number to be added to 1780 to make the sum a perfect square.
Free Tests
Free
Must Attempt
RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)
English
100 Questions
100 Marks
90 Mins
EnglishFree
Must Attempt
CBT-1 Full Mock Test 1
English- 100 Questions
- 100 Marks
- 90 Mins
EnglishFree
Must Attempt
RRB Group D Full Mock Test 1
English- 100 Questions
- 100 Marks
- 90 Mins
EnglishSimilar Questions
- 1)
28P3 is divisible by 9. What is the value of P?
- 2)
How many numbers among 51, 62, 84, 97 are divisible by 9?
- 3)
The product of two consecutive positive multiples of 5 is 750. What is the smaller of the two numbers?
- 4)
A and B are two positive odd numbers. A × B = 9 and A < B. What is the value of A + B?
- 5)
Which of the following is NOT equal to ?
- 6)The sum of all odd prime numbers from 1 to 25 is
- 7)LCM of even prime number and least composite number is
- 8)Value of x for which x, (x+1), (x+3) are all prime numbers is
- 9)Number of minutes in a half day is
- 10)
How many are in ?
Access ‘RRB JE’ Mock Tests with
- 60000+ Mocks and Previous Year Papers
- Unlimited Re-Attempts
- Personalised Report Card
- 500% Refund on Final Selection
- Largest Community
446k+ students have already unlocked exclusive benefits with Test Prime!
Suggested Test Series
RRB NTPC Under Graduate (CBT 1 + CBT 2) 2025-26 Mock Test
RRB NTPC Under Graduate (CBT 1 + CBT 2) 2025-26 Mock Test
1023 Tests + 2 Free Tests
RRB Group D 2025-26 Mock Test
RRB Group D 2025-26 Mock Test
903 Tests + 3 Free Tests
RRB ALP (CBT 1 + CBT 2 + Psycho) 2026 Mock Test
RRB ALP (CBT 1 + CBT 2 + Psycho) 2026 Mock Test
611 Tests + 3 Free Tests
Current Affairs Cracker for all SSC, Railway, Central & State Exams Mock Test
Current Affairs Cracker for all SSC, Railway, Central & State Exams Mock Test
566 Tests + 3 Free Tests
RRB NTPC Graduate (CBT 1 + CBT 2 + Psycho) 2025-26 Mock Test
RRB NTPC Graduate (CBT 1 + CBT 2 + Psycho) 2025-26 Mock Test
952 Tests + 3 Free Tests
Access ‘RRB JE’ Mock Tests with
- 60000+ Mocks and Previous Year Papers
- Unlimited Re-Attempts
- Personalised Report Card
- 500% Refund on Final Selection
- Largest Community
446k+ students have already unlocked exclusive benefits with Test Prime!
Suggested Test Series
RRB NTPC Under Graduate (CBT 1 + CBT 2) 2025-26 Mock Test
RRB NTPC Under Graduate (CBT 1 + CBT 2) 2025-26 Mock Test
1023 Tests + 2 Free Tests
RRB Group D 2025-26 Mock Test
RRB Group D 2025-26 Mock Test
903 Tests + 3 Free Tests
RRB ALP (CBT 1 + CBT 2 + Psycho) 2026 Mock Test
RRB ALP (CBT 1 + CBT 2 + Psycho) 2026 Mock Test
611 Tests + 3 Free Tests
Current Affairs Cracker for all SSC, Railway, Central & State Exams Mock Test
Current Affairs Cracker for all SSC, Railway, Central & State Exams Mock Test
566 Tests + 3 Free Tests
RRB NTPC Graduate (CBT 1 + CBT 2 + Psycho) 2025-26 Mock Test
RRB NTPC Graduate (CBT 1 + CBT 2 + Psycho) 2025-26 Mock Test
952 Tests + 3 Free Tests
Similar Questions
- 1)
28P3 is divisible by 9. What is the value of P?
- 2)
How many numbers among 51, 62, 84, 97 are divisible by 9?
- 3)
The product of two consecutive positive multiples of 5 is 750. What is the smaller of the two numbers?
- 4)
A and B are two positive odd numbers. A × B = 9 and A < B. What is the value of A + B?
- 5)
Which of the following is NOT equal to ?
- 6)The sum of all odd prime numbers from 1 to 25 is
- 7)LCM of even prime number and least composite number is
- 8)Value of x for which x, (x+1), (x+3) are all prime numbers is
- 9)Number of minutes in a half day is
- 10)
How many are in ?
