Instructions

For the following questions answer them individually

Question 63

Read the following question and decide which of the given statements is/are sufficient.**Question:**

The average marks of X, Y, Z is 180. What is Xâ€™s mark?**Statements:**

1. Y and Z together score 50 marks

2. X and Z together score 60 marks

Question 64

What is the wave length of a sound wave whose frequency is 820 Hz and speed is 420 m/s in a given medium?

Question 65

From each come rof a square with an edge of 4 cm, a 1 cm segment was chopped off from each side containing a vertex. What is the perimeter and the area ofthe octagon thus created?

Question 66

The given Problem Figure is embedded in one of the given Answer Figures. Which is that Answer Figure?

Question 67

Which of the following statements is/are INCORRECT?

A. The ratio of the force of gravitation between two masses, $$Â m^{1}$$Â and $$ m^{2} $$, kept at a distance R on the earth and on the moon is 1:1.

B. N$$m^{2}$$/ $$kg^{2}$$ is the SI unit of G.

C. The value of G depends on the distance between the bodies.

D. The value of G depends on the masses of the bodies.

Question 70

In the given diagram,triangle represents the set of people who possess a car; square represents the set of people who possess a house; and circle represents the set of people who possess gold.

What is the total number of people who possess a car and gold but do not have a house?