MCQOPTIONS
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MCQOPTIONS
This section includes 116 Mcqs, each offering curated multiple-choice questions to sharpen your Arithmetic Ability knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
While solving a mathematical problem, Samidha squared a number and then subtracted 25 from it rather than the required i.e., first subtracting 25 from the number and then squaring it. But she got the right answer. What was the given number ? |
| A. | 3 |
| B. | 8 |
| C. | 8 |
| D. | annot be determined |
| E. | one of these |
| Answer» B. 8 | |
| 52. |
What percentage of the numbers from 1 to 50 have squares that end in the digit 1 ? |
| A. | % |
| B. | % |
| C. | 0% |
| D. | 1% |
| E. | 0% |
| Answer» F. | |
| 53. |
Which of the following is closest to $$\sqrt 3= \,?$$ |
| A. | 0.69 |
| B. | $\frac{{173}}{{100}}$$ |
| C. | 0.75 |
| D. | $\frac{9}{5}$$ |
| Answer» C. 0.75 | |
| 54. |
The smallest natural number which is a perfect square and which ends in 3 identical digits lies between ? |
| A. | 000 and 2000 |
| B. | 000 and 3000 |
| C. | 000 and 4000 |
| D. | 000 and 5000 |
| Answer» B. 000 and 3000 | |
| 55. |
R is a positive number. It is multiplied by 8 and then squared. The square is now divided by 4 and the square root is taken. The result of the square root is Q. What is the value of Q ? |
| A. | R |
| B. | R |
| C. | R |
| D. | R |
| Answer» C. R | |
| 56. |
A man born in the first half of the nineteenth century was x years old in the year x2.He was born in ? |
| A. | 806 |
| B. | 812 |
| C. | 825 |
| D. | 836 |
| Answer» B. 812 | |
| 57. |
The number of perfect square numbers between 50 and 1000 is = ? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 58. |
$$\sqrt {\frac{{25}}{{81}} - \frac{1}{9}}= ?$$ |
| A. | $\frac{2}{3}$$ |
| B. | $\frac{4}{9}$$ |
| C. | $\frac{{16}}{{81}}$$ |
| D. | $\frac{{25}}{{81}}$$ |
| Answer» C. $\frac{{16}}{{81}}$$ | |
| 59. |
If $$y = 5{\text{,}}$$then what is the value of $$10y\sqrt {{y^3} - {y^2}} $$= ? |
| A. | $50\sqrt 2 $$ |
| B. | 00 |
| C. | $200\sqrt 5 $$ |
| D. | 00 |
| Answer» E. | |
| 60. |
The square root of $$\left( {{{272}^2} - {{128}^2}} \right)$$is = ? |
| A. | 44 |
| B. | 00 |
| C. | 40 |
| D. | 56 |
| Answer» D. 56 | |
| 61. |
$$\sqrt {\sqrt {17956}+ \sqrt {24025} }=?$$ |
| A. | 9 |
| B. | 55 |
| C. | 56 |
| D. | 89 |
| E. | one of these |
| Answer» F. | |
| 62. |
The square root of 123454321 is = ? |
| A. | 11111 |
| B. | 2341 |
| C. | 1111 |
| D. | 1211 |
| Answer» D. 1211 | |
| 63. |
The square root of 41209 is equal to = ? |
| A. | 03 |
| B. | 03 |
| C. | 03 |
| D. | 03 |
| Answer» C. 03 | |
| 64. |
$$\sqrt {11881}\times \sqrt ?= 10137$$ |
| A. | 281 |
| B. | 649 |
| C. | 216 |
| D. | 409 |
| E. | one of these |
| Answer» C. 216 | |
| 65. |
$$\sqrt ?\times \sqrt {484}= 1034$$ |
| A. | 025 |
| B. | 209 |
| C. | 304 |
| D. | 401 |
| E. | one of these |
| Answer» C. 304 | |
| 66. |
$${\left( {15} \right)^2} + {\left( {18} \right)^2} - 20 = \sqrt ? $$ |
| A. | 2 |
| B. | 3 |
| C. | 29 |
| D. | 79841 |
| E. | one of these |
| Answer» E. one of these | |
| 67. |
$$\sqrt {176 + \sqrt {2401} } $$is equal to=? |
| A. | 4 |
| B. | 5 |
| C. | 8 |
| D. | 4 |
| Answer» C. 8 | |
| 68. |
$${\left( {\sqrt 3- \frac{1}{{\sqrt 3 }}} \right)^2}\,{\text{simplifies}}\,{\text{to:}}$$ |
| A. | $\frac{3}{4}$$ |
| B. | $\frac{4}{{\sqrt 3 }}$$ |
| C. | $\frac{4}{3}$$ |
| D. | one of these |
| Answer» D. one of these | |
| 69. |
$$\sqrt {0.0169 \times ?}= 1.3$$ |
| A. | 0 |
| B. | 00 |
| C. | 000 |
| D. | one of these |
| Answer» C. 000 | |
| 70. |
If $$\sqrt 5= 2.236, $$then the value of $$\frac{{\sqrt 5 }}{2}$$ $$ - $$ $$\frac{{10}}{{\sqrt 5 }}$$ $$ + $$ $$\sqrt {125} $$is equal to : |
| A. | 0.59 |
| B. | 0.826 |
| C. | 0.944 |
| D. | 0.062 |
| Answer» C. 0.944 | |
| 71. |
If $$x = \frac{{\sqrt 3+ 1}}{{\sqrt 3- 1}}$$and $$y = \frac{{\sqrt 3- 1}}{{\sqrt 3+ 1}},$$then the value of $$\left( {{x^2} + {y^2}} \right)$$is? |
| A. | 0 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 72. |
If a = 0.1039, then the value of $$\sqrt {4{a^2} - 4a + 1}+ 3a$$is: |
| A. | 0.1039 |
| B. | 0.2078 |
| C. | 0.1039 |
| D. | 0.1039 |
| Answer» D. 0.1039 | |
| 73. |
If $$a = 0.1039{\text{,}}$$then the value of $$\sqrt {4{a^2} - 4a + 1} $$$$ + $$ $$3a$$is ? |
| A. | 0.1039 |
| B. | 0.2078 |
| C. | 0.1039 |
| D. | 0.1039 |
| Answer» D. 0.1039 | |
| 74. |
$${\left( {\sqrt 3- \frac{1}{{\sqrt 3 }}} \right)^2}$$simplifies to ? |
| A. | $\frac{3}{4}$$ |
| B. | $\frac{4}{{\sqrt 3 }}$$ |
| C. | $\frac{4}{3}$$ |
| D. | one of these |
| Answer» D. one of these | |
| 75. |
The value of $$\sqrt {\frac{{{{\left( {0.03} \right)}^2} + {{\left( {0.21} \right)}^2} + {{\left( {0.065} \right)}^2}}}{{{{\left( {0.003} \right)}^2} + {{\left( {0.021} \right)}^2} + {{\left( {0.0065} \right)}^2}}}} $$is ? |
| A. | 0.1 |
| B. | 0 |
| C. | ${10^2}$$ |
| D. | ${10^3}$$ |
| Answer» C. ${10^2}$$ | |
| 76. |
$$\sqrt {110.25}\times \sqrt {0.01} \, \div $$$$\sqrt {0.0025} $$$$ - $$ $$\sqrt {420.25} $$equals ? |
| A. | 0.5 |
| B. | 0.64 |
| C. | 0.73 |
| D. | 0.75 |
| Answer» B. 0.64 | |
| 77. |
The approximate value of $$\frac{{3\sqrt {12} }}{{2\sqrt {28} }}$$$$ \div $$ $$\frac{{2\sqrt {21} }}{{\sqrt {98} }}$$is ? |
| A. | 0.0605 |
| B. | 0.0727 |
| C. | 0.6007 |
| D. | 0.6026 |
| Answer» B. 0.0727 | |
| 78. |
Given $$\sqrt 2= 1.414.$$Then the value of $$\sqrt 8 $$$$ + $$ $$2\sqrt {32} $$$$ - $$ $$3\sqrt {128} $$$$ + $$ $$4\sqrt {50} $$is = ? |
| A. | 0.426 |
| B. | 0.484 |
| C. | 0.526 |
| D. | 0.876 |
| Answer» C. 0.526 | |
| 79. |
If $$3\sqrt 5+ \sqrt {125}= 17.88{\text{,}}$$then what will be the value of $$\sqrt {80} $$$$ + $$ $$6\sqrt 5 $$= ? |
| A. | 3.41 |
| B. | 0.46 |
| C. | 1.66 |
| D. | 2.35 |
| Answer» E. | |
| 80. |
The value of $$\sqrt 2 $$up to three places of decimal is = ? |
| A. | 0.41 |
| B. | 0.412 |
| C. | 0.413 |
| D. | 0.414 |
| Answer» E. | |
| 81. |
Three-fifth of the square of a certain number is 126.15. What is the numbers ? |
| A. | 4.5 |
| B. | 5.69 |
| C. | 45 |
| D. | 10.25 |
| Answer» B. 5.69 | |
| 82. |
If $$\sqrt {\left( {x - 1} \right)\left( {y + 2} \right)}= 7,$$x and y being positive whole numbers, then the values of x and y respectively are ? |
| A. | , 5 |
| B. | 5, 12 |
| C. | 2, 19 |
| D. | one of these |
| Answer» B. 5, 12 | |
| 83. |
If $$\sqrt {1369}+ \sqrt {0.0615 + x} $$= 37.25, the x is equal to ? |
| A. | ${10^{ - 1}}$$ |
| B. | ${10^{ - 2}}$$ |
| C. | ${10^{ - 3}}$$ |
| D. | one of these |
| Answer» D. one of these | |
| 84. |
$$\sqrt {\frac{{0.0196}}{?}}= 0.2$$ |
| A. | 0.49 |
| B. | 0.7 |
| C. | 0.9 |
| D. | one of these |
| Answer» B. 0.7 | |
| 85. |
If $$\sqrt x\div \sqrt {441}= 0.02{\text{,}}$$then the value of x is ? |
| A. | 0.1764 |
| B. | 0.764 |
| C. | 0.64 |
| D. | 0.64 |
| Answer» B. 0.764 | |
| 86. |
If $$0.13 \div {p^2} = 13{\text{,}}$$then p equals = ? |
| A. | 0.01 |
| B. | 0.1 |
| C. | 0 |
| D. | 00 |
| Answer» C. 0 | |
| 87. |
If $$\sqrt {x + \frac{x}{y}}= x\sqrt {\frac{x}{y}} {\text{,}}$$where x and y are positive real numbers, then y is equal to ? |
| A. | ${\text{x}} + 1$$ |
| B. | ${\text{x}} - 1$$ |
| C. | ${{\text{x}}^2} + 1$$ |
| D. | ${{\text{x}}^2} - 1$$ |
| Answer» E. | |
| 88. |
What should come in place of both the question marks in the equation ?$$\frac{?}{{\sqrt {128} }} = \frac{{\sqrt {162} }}{?}$$ |
| A. | 2 |
| B. | 4 |
| C. | 44 |
| D. | 96 |
| Answer» B. 4 | |
| 89. |
Which number should replace both the question marks in the following equation ?$$\frac{?}{{1776}} = \frac{{111}}{?}$$ |
| A. | 43 |
| B. | 14 |
| C. | 44 |
| D. | 43 |
| E. | one of these |
| Answer» F. | |
| 90. |
For what value of * the statement $$\left( {\frac{*}{{15}}} \right)$$ $$\left( {\frac{*}{{135}}} \right)$$= 1 is true ? |
| A. | 5 |
| B. | 5 |
| C. | 5 |
| D. | 5 |
| Answer» E. | |
| 91. |
If $$\frac{{52}}{x} = \sqrt {\frac{{169}}{{289}}} {\text{,}}$$the value of x is = ? |
| A. | 2 |
| B. | 8 |
| C. | 2 |
| D. | 8 |
| Answer» E. | |
| 92. |
If $$3\sqrt 5+ \sqrt {125} $$= 17.88, then what will be the value of $$\sqrt {80}+ 6\sqrt 5 \,\,?$$ |
| A. | 3.41 |
| B. | 0.46 |
| C. | 1.66 |
| D. | 2.35 |
| Answer» E. | |
| 93. |
$$\sqrt {1.5625}= ?$$ |
| A. | 0.05 |
| B. | 0.25 |
| C. | 0.45 |
| D. | 0.55 |
| Answer» C. 0.45 | |
| 94. |
What should come in place of both x in the equation $$\frac{x}{{\sqrt {128} }} = \frac{{\sqrt {162} }}{x}$$ |
| A. | 2 |
| B. | 4 |
| C. | 44 |
| D. | 96 |
| Answer» B. 4 | |
| 95. |
How many two-digit numbers satisfy this property.: The last digit (unit\'s digit) of the square of the two-digit number is 8 ? |
| A. | 2 |
| B. | 1 |
| C. | None of these |
| D. | 3 |
| Answer» D. 3 | |
| 96. |
The square root of 64009 is: |
| A. | 253 |
| B. | 347 |
| C. | 363 |
| D. | 803 |
| Answer» B. 347 | |
| 97. |
The least perfect square, which is divisible by each of 21, 36 and 66 is: |
| A. | 213444 |
| B. | 214344 |
| C. | 214434 |
| D. | 231444 |
| Answer» B. 214344 | |
| 98. |
How many two-digit numbers satisfy this property.: The last digit (unit"s digit) of the square of the two-digit number is 8 ? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | None of these |
| Answer» E. | |
| 99. |
If 3‚à ö5 + ‚à ö125 = 17.88, then what will be the value of ‚à ö80 + 6‚à ö5?%! |
| A. | 13.41 |
| B. | 20.46 |
| C. | 21.66 |
| D. | 22.35 |
| Answer» E. | |
| 100. |
*$_If 3‚à ö5 + ‚à ö125 = 17.88, then what will be the value of ‚à ö80 + 6‚à ö5?? |
| A. | 13.41 |
| B. | 20.46 |
| C. | 21.66 |
| D. | 22.35 |
| Answer» E. | |