Question : The diameter of the 120 cm long roller is 84 cm. It takes 500 complete revolutions of the roller to level the ground. The cost of levelling the ground at Rs. 1.50 per sq. m. is:

Option 1: Rs. 6,000

Option 2: Rs. 3,762

Option 3: Rs. 2,376

Option 4: Rs. 5,750

Question : The sides of a rhombus are 10 cm each and the diagonal measures 16 cm. The area of the rhombus is:

Option 1: 96 sq. cm

Option 2: 160 sq. cm

Option 3: 100 sq. cm

Option 4: 40 sq. cm

Question : Two triangles MNO and XYZ are given similar with the ratio of their side as 9 : 4. If the area of the larger triangle is 243 sq. cm, then the area of the smaller triangle will be:

Option 1: 162 sq. cm

Option 2: 28 sq. cm

Option 3: 48 sq. cm

Option 4: 16 sq. cm

Question : A hemispherical bowl has a 3.5 cm radius. It is to be painted inside as well as outside. The cost of painting it at the rate of Rs. 5 per 10 sq. cm will be:

Option 1: Rs. 77

Option 2:  Rs. 100

Option 3: Rs. 175

Option 4: Rs. 50

Question : The diameter $PQ$ of a circle with centre $O$ is perpendicular to the chord $RS$. $PQ$ intersects $RS$ at $T$. If $RS=16$ cm and $QT=4$ cm, what is the length (in cm) of the diameter of the circle?

Option 1: 20

Option 2: 48

Option 3: 24

Option 4: 10

Question : $\triangle$ABC is similar to $\triangle$PQR. The length of AB is 16 cm and the length of the corresponding side PQ is 9 cm. If the area of $\triangle$ABC is 1024 sq. cm, what is the area of $\triangle$PQR?

Option 1: 768 sq. cm

Option 2: 32 sq. cm

Option 3: 324 sq. cm

Option 4: 128 sq. cm