The multiplication of the age of Rajeev, before 5 yr and after 9 yr, is 15. What is the present age of Rajeev ?

• 6yr

• 7yr

• 5yr

• 8yr

$$\begin{gathered} \mathrm{In} \mathrm{the} \mathrm{given} \mathrm{figure}, \overline{\mathrm{AOB}} \mathrm{is} \mathrm{a} \mathrm{simple} \mathrm{line} \mathrm{and} \overline{\mathrm{OC}} \mathrm{is} \mathrm{incident} \mathrm{on} \mathrm{this}. \\ \mathrm{If} \mathrm{a} : \mathrm{b} = 2 : 1, \mathrm{then} \mathrm{the} \mathrm{value} \mathrm{of} \mathrm{a} \mathrm{is} \end{gathered}$$

• 80⁰

• 100⁰

• 120⁰

• 140⁰

The students (in Lakh) who appeared and ratio of pass and fail in different cities are given in the following table. Read carefully and answer following question

How many applicants pass in City E ?

• 13000

• 1110000

• 113000

• 111000

$\mathrm{In} \mathrm{the} \mathrm{given} \mathrm{figure}, \mathrm{O} \mathrm{is} \mathrm{the} \mathrm{centre} \mathrm{and} \angle \mathrm{ACB} = 40°, \mathrm{then} \angle \mathrm{ACB} \mathrm{is} \mathrm{equal} \mathrm{to}$

• 30⁰

• 40⁰

• 60⁰

• 80⁰

If the radius of the circle is increased 3 times, then how many times the new circumference increase from its original size ?

• 3

• $\frac{1}{3}$

• 9

• None of these

A room is 12 m long, 9 m wide and 8 m high. What is maximum length of a rod that can be kept in the room ?

• 17m

• 16m

• 15m

• 14m

Percentage of girls in different school are plotted in following graph. Read carefully and answer following questions

Average number of students in both School P and Q

• 1425

• 1575

• 2750

• 1625

Nature of mathematics

• it is logical

• it is difficult

• it is ornamental

• it is not for average students

In which of the following practice teaching does not helps ?

• To increase learning transfer

• To increase understanding solution of the problem

• To develop efficiency use of theoretical knowledge

• To work quickly of any problem

Importance of Action Mathematics is

• direct experience

• learning by self doing

• to be permanent and clear of concepts

• All of the above