Lakshya Education MCQs

Question:

Find the least number which must be added to 6412 so as to get a perfect square.

Options:
A.149
B.159
C.169
D.179
Answer: Option A

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More Questions on This Topic :

Question 1.

Find the least number which must be subtracted from 825 so as to get a perfect square.

Options:
  1.    21
  2.    31
  3.    41
  4.    none of these
Answer: Option C
Question 2.

Find the smallest square number that is divisible by each of the numbers 8, 15 and 20.

Options:
  1.    900
  2.    1600
  3.    2500
  4.    3600
Answer: Option D
Question 3.

Find the smallest square number that is divisible by each of the numbers 4, 9 and 10.

Options:
  1.    400
  2.    900
  3.    1600
  4.    2500
Answer: Option B
Question 4.

Find the length of the side of a square whose area is 441 m2.

Options:
  1.    11
  2.    21
  3.    31
  4.    41
Answer: Option B
Question 5.

In a right triangle ABC, ÐB = 90°.If AC = 13 cm, BC = 5 cm, find AB

Options:
  1.    6
  2.    8
  3.    10
  4.    12
Answer: Option D
Question 6.

A gardener has 1000 plants. He wants to plant these in such a way that the numberof rows and the number of columns remain same. Find the minimum number of  plants he needs more for this.

Options:
  1.    18 plants
  2.    22 plants
  3.    24 plants
  4.    none of these
Answer: Option C