# Mathematics Quiz For CTET

Dear
reader here we are providing some question on mathematics which can be helpful
1.
The
sum of two numbers is 8 and their product is 15. The sum of their reciprocals
is
(a)15/8                                       (b)
8/15

(c) 23/5                                       (d) 2/5
2.
A
number, when divided by 221, leaves a remainder 64.what is the remainder of the
same number is divided by 13?
(a) 0                                            (b) 1
(c) 11                                          (d) 12
3.
What
is the remainder when (x11+1) is divided by (x+1)?
(a) 0                                            (b) 2
(c) 11                                          (d) 12
4.
The
unit digit in the product (122)173 is
(a) 2                                            (b) 4
(c) 6                                            (d) 8
5.
A number increased by
20% and then decreased by 20%. Finally the number is:
(a) Decreased by 4%                 (b)
increased by 4%
(c) Does not change                  (d) decreased by 0.4%
6.
A student multiplied a
number by 3/5 instead of 5/3. What is the percentage error in the calculation?
(a) 60%                                       (b) 62%
(c) 64%                                       (d) 65%
7.
Two
number x and y are respectively 20% and 50% more than a third number x is how
much percent of y?
(a) 30 %                                     (b) 45%
(c) 60 %                                     (d) 80%
8.
13%
of a number exceeds 5% of the same by 16. The number is :
(a) 500                                        (b)
450
(c) 300                                        (d)
200
9.
The
average weight of 8 person is increased by 2.5 kg when one of them whose weight
is 56 kg is replaced by a new man. The weight of the new man is:
(a) 58.5 kg                                  (b) 76 kg
(c) 20 kg                                     (d)
64 kg

10.      A train travels from A to B at the
rate of 20kmper hour and from B to A at the rate of 30 km/hr. What is the
average rate for the whole journey?
(a) 24 km/hr                                (b) 25 km/hr
(c) 26 km/hr                                (d) 28 km/hr
1.
(b):
Let the numbers are x and y
x + y = 8 and x. y = 15
Sum of the reciprocals = 1/x+1/y = y
+ x/x y = 8/15
2.
(d):
221 is divided by 13
required remainder = remainder by
64/13 = 12
3.
(a):

x11+1 is divisible by(x+1)
Remainder
is 0
4.
(a):

Power of (122)173 is odd number
unit
digit in the product of (122)173 = 2
5.      (a):
Final change = a2/100 à (20*20)/100, 4%
decrease
6.      (c):
Let the number be x
Then, error =
(5/3)x – (3/5)x =(16/15)x
Error% = [(16x/15)
/(5x/3)] * 100% = 64%
7.     (d):
Let
the third number is 100
The number
x = 120 and the number y = 150
x is how
much percent of y = x*100/y = 120*100/150  = 80%
8.    (d):
Let
the number is X
13%
of the x-5% of x = 16
∴13*x/100
– 5*x/100 = 16
àX
= 200
9.     (b):
The weight of new man = weight of ex person
+2.5*8
= 56 + 20 = 76 kg
10.  (a)
:
By the formula:  2UV/U+V
Average speed = (2 x 20 x 30) / (20 + 30) = 24
km/hr

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