Important Short Tips of Square Root ,Cube Root and Quant Quiz

Hello Readers,
We shall discuss about Square  Root and Cube Root of the Quant section.  Now a days these topics  have became an important part of the Quant test in  SSC and also help almost all Entrance Exams like FCI Exams and IBPS Exam.So Here we will help you in this.We will  provide short Tips and quant quiz.



































5.
The least perfect square, which is divisible by each of 21, 36 and 66 is:

A.
213444
B.
214344
C.
214434      
D.
231444
6.
How many two-digit numbers satisfy this property : The last digit (units digit)
of the square of the two-digit number is 8 ?
A.
1
B.
2
C.
3
D.
None of these
7.A
group of students decided to collect as many paise from each member of group as
is the number of members. If the total collection amounts to Rs. 59.29, the
number of the member is the group is:
A.
57  
B.
67
C.
77  
D.
87
8.
A group of students decided to collect as many paise from each member of group
as is the number of members. If the total collection amounts to Rs. 98.01, the
number of the member is the group is:
A.
101
B.
98
C.
99
D.
88
9.A
man plants 49284 apple trees in his garden and arranges them so that there are
as many rows as there are apples trees in each row. The number of rows is
A.
182
B.
202
C.
222
D.
122
10.If
0.13÷p^2=13, then p equals :
A.
0.01
B.
0.1
C.
10
D  100


ANSWER AND SOLUTION :
















6(D)Explanation
:

A number ending
with 8 can never become a perfect square
Let’s examine
this in detail
1 × 1 = 1
Hence, if the
unit digit of a number is 1, unit digit of its square is 1
2 × 2 = 4
Hence, if the
unit digit of a number is 2, unit digit of its square is 4
3 × 3 = 9
Hence, if the
unit digit of a number is 3, unit digit of its square is 9
4 × 4 = 16
Hence, if the
unit digit of a number is 4, unit digit of its square is 6
5 × 5 = 25
Hence, if the
unit digit of a number is 5, unit digit of its square is 5
6 × 6 = 36
Hence, if the
unit digit of a number is 6, unit digit of its square is 6
7 × 7 = 49
Hence, if the
unit digit of a number is 7, unit digit of its square is 9
8 × 8 = 64
Hence, if the
unit digit of a number is 8, unit digit of its square is 4
9 × 9 = 81
Hence, if the
unit digit of a number is 9, unit digit of its square is 1
0 × 0 = 0
Hence, if the
unit digit of a number is 0, unit digit of its square is 0

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66 Comments

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