CTET MATHEMATICS QUIZ 43

Question 1:

A and B together can complete a piece of work in 3 days, while C and D together can complete the same work in 6 days. In how many days can A, B, C and D complete it together?

3

2$\frac{1}{2}$

2$\frac{1}{4}$

2

Question 2:

The table below shows number of tigers in a National Park in different years :

Select the correct statement :

The number of tigers increased every year.

With respect to previous year, more number of tigers decreased in 2015 in comparison to 2016.

With respect to previous year, more number of tigers decreased in 2017 in comparison to 2015.

With respect to previous years, equal number of tigers decreased in 2016 and 2017

Question 3:

Find the value of $3+\left\{1+\frac{1}{3}-(3-4 \div 3)+\frac{1}{4}+\frac{2}{3}\right\}$.

$\frac{7}{3}$

$\frac{11}{12}$

$\frac{43}{12}$

$\frac{4}{3}$

Question 4:

The HCF of 552,759 and 828 is x. The value of x lies between:

55 and 60

60 and 65

65 and 70

70 and 75

Question 5:

The ratio of the present ages of A and B is 8 : 15. After four years from now, their ages will be in the ratio 9 : 16. What will be the sum of their ages (in years) after 8 years from now?

116

108

100

98

Question 6:

A can complete a task in 15 days and B can do it in 20 days. What is their one day work together?

$\frac{8}{15}$

$\frac{7}{15}$

$\frac{7}{60}$

$\frac{9}{65}$

Question 7:

The diameter of the base of a right circular cone is $60 \mathrm{~cm}$ and its height is $16 \mathrm{~cm}$. The curved surface area (in $\mathrm{cm}^2$ ) of the cone is:

$960 \pi$

$1020 \pi$

$1054 \pi$

$1088 \pi$

Question 8:

$3 \times 6+8-6 \div 3+9$ is equal to:

12

45

21

33

Question 9:

A man travels from $\mathrm{A}$ to $\mathrm{B}$ at a speed of $20 \mathrm{~km} / \mathrm{h}$ and returns by increasing his speed by $50 \%$. What is his average speed for both the trips?

$40 \mathrm{~km} / \mathrm{h}$

$48 \mathrm{~km} / \mathrm{h}$

$24 \mathrm{~km} / \mathrm{h}$

$36 \mathrm{~km} / \mathrm{h}$

Question 10:

Find the third proportional to 15 and 45 .

125

145

165

135