CBSE Questions for Class 8 Maths Squares And Square Roots Quiz 4 - MCQExams.com

A four digit perfect square number whose first two digits and last two digits taken seperately are also perfect squares is:
  • 1,681
  • 1,636
  • 3,664
  • 6,481
Which of the following numbers will not have 1(one) at their unit's place?
  • $$(32)^2$$
  • $$(57)^2$$
  • $$(69)^2$$
  • $$(321)^2$$
  • $$(97)^2$$
  • $$(265)^2$$
  • $$(2091)^2$$
The value of $$\sqrt{0.9}$$ is (approximately)
  • 0.3
  • 0.03
  • 0.33
  • 0.94
Which one of the following can't be the square of natural number?
  • $$1936$$
  • $$2452$$
  • $$1369$$
  • $$6561$$
Find the square root of 784 by prime factorisation method.
  • $$22$$
  • $$28$$
  • $$18$$
  • $$38$$
The smallest number by which 396 must be multiplied so that the product becomes a perfect square is:
  • 5
  • 11
  • 3
  • 2
The least number by which 216 must be divided to make the result a perfect square, is
  • 3
  • 4
  • 6
  • 9
For the following number, find the smallest whole number by which it should be multiplied so as to get a perfect square number. Also, find the square root of the square number so obtained.
$$252$$
  • $$3;42$$
  • $$7;42$$
  • $$7;30$$
  • $$2;42$$
Without doing any calculation, find the numbers which are surely not perfect squares:
$$153$$
$$257$$
$$408$$
$$441$$
  • $$153,\,257\;and\;441$$ are surely not perfect squares.
  • $$441,\,257\;and\;408$$ are surely not perfect squares.
  • $$153,\,441\;and\;408$$ are surely not perfect squares.
  • $$153,\,257\;and\;408$$ are surely not perfect squares.
A gardener wants to plant $$17956$$ trees and arranges them in such a way that there are as many rows as there are trees in a row. What is the number of trees in a row?
  • $$144$$
  • $$136$$
  • $$154$$
  • $$134$$
The largest number of $$5$$ digits, which is perfect square is
  • $$99999$$
  • $$99764$$
  • $$99976$$
  • $$99856$$
What could be the possible 'one's' digit of the square root of each of the following numbers?
$$9801$$
$$99856$$
  • $$1\;or\;9\;;\;4\;or\;6$$
  • $$2\;or\;8\;;\;4\;or\;6$$
  • $$1\;or\;9\;;\;2\;or\;8$$
  • $$2\;or\;8\;;\;5\;or\;0$$
Find the square root of the following decimal numbers:
$$2.56$$
&
$$51.84$$
  • $$1.4$$
    &
    $$7.8$$
  • $$1.6$$ 
    &
    $$7.2$$
  • $$1.4$$ 
    &
    $$7.2$$
  • $$1.6$$ 
    &
    $$7.8$$
Find the square root of each of the following numbers by division method:
$$2304$$
$$4489$$
$$3481$$
  • $$38;67;59$$
  • $$48;57;59$$
  • $$48;67;69$$
  • $$48;67;59$$
The students of class VII of a school denoted $$Rs. 2401$$ in all, for Prime Minister's National Relief Fund. Each student denoted as many rupees as the number of students in the class. Find the number of students in the class.
  • $$47$$
  • $$51$$
  • $$49$$
  • $$53$$
Which one of the following can't be the square of natural number ?
  • $$143642$$
  • $$27859$$
  • $$57896$$
  • $$27896$$
Find the square root of $$10$$, correct to four places of decimal.
  • $$3.4623$$
  • $$3.1023$$
  • $$3.1693$$
  • $$3.1623$$
What least number must be substracted from $$176$$ to make it a perfect square?
  • $$16$$
  • $$10$$
  • $$7$$
  • $$4$$
Which of the following is a pythagorean triplet?
  • $$(2,\,3,\,5)$$
  • $$(5,\,7,\,9)$$
  • $$(6,\,9,\,11)$$
  • $$(8,\,15,\,17)$$
Check whether $$1152$$ is a perfect square. If not, then find the least number by which it should be divided so that, the quotient becomes a perfect square. Also, find the square root of the quotient.
  • $$2; 24$$
  • $$3; 24$$
  • $$2; 19$$
  • $$3; 19$$
Find the square root of each of the following correct to three places of decimal.
$$17$$
$$1.7$$
$$2.5$$
$$\displaystyle\frac{7}{8}$$
  • $$4.153\;;\;1.304\;;\;1.581\;;\;0.935$$
  • $$4.123\;;\;1.304\;;\;1.581\;;\;0.995$$
  • $$4.123\;;\;1.304\;;\;1.581\;;\;0.935$$
  • $$4.123\;;\;1.304\;;\;1.501\;;\;0.935$$
Find the least number which must be added to each of the following numbers so as to get a perfect square. Also, find the square root of the perfect square so obtained.
$$525$$
$$1750$$
  • $$ 4,23;14,48$$
  • $$ 4,27;14,42$$
  • $$ 4,23;14,42$$
  • $$ 4,27;14,48$$
When a number ends with a $$6$$ in units place, the units place of a square is____.
  • 18
  • 6
  • 9
  • 4
What could be the possible one's digits of the square root of the following numbers?
$$9801$$
$$99856$$
$$99800$$
$$657666025$$
  • $$1\;or\;9\;;\;4\;or\;6\;;\;0\;;\;5$$
  • $$2\;or\;8\;;\;4\;or\;6\;;\;0\;;\;5$$
  • $$1\;or\;9\;;\;2\;or\;8\;;\;0\;;\;5$$
  • $$1\;or\;9\;;\;4\;or\;6\;;\;5\;;\;0$$
Which one of the following cannot be the square of a natural number ?
  • $$30976$$
  • $$75625$$
  • $$28561$$
  • $$143642$$
The square root of an odd number
  • need not be odd
  • is odd
  • is even
  • cannot be determined
Write a Pythagorean triplet whose one member is $$16$$ :
  • $$25, 49$$
  • $$25, 61$$
  • $$63, 65$$
  • None of these
What is the smallest number by which 338 is multiplied or divided to make a perfect square?
  • 13
  • 4
  • 6
  • 2
Write a Pythagorean triplet whose one member is 14:
  • 36, 64
  • 48, 50
  • 8, 6
  • 17, 20
Which of the following numbers is not a perfect square? 
  • 36
  • 81
  • 37
  • Both (A) and (B)
  • Answer required
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