Question : How many bricks each measuring 25 cm × 12.5 cm × 16 cm will be needed to construct a wall 8 m long, 5 m high, and 22.5 cm thick?

Option 1: 2400

Option 2: 1800

Option 3: 1200

Option 4: 3600

Question : What is the value of $\frac{7 \times 4 \div 8}{5 \times 25 \div 125}+\frac{5 \times 4 \div 8}{8 \times 4 \div 16}-\frac{7 \times 4 \div 2}{8 \times 7 \div 4}$?

Option 1: $4$

Option 2: $\frac{13}{4}$

Option 3: $\frac{15}{4}$

Option 4: $\frac{9}{2}$

Question : What is the value of $\frac{\frac{5}{6} \text { of } \frac{1}{3} \times \frac{12}{25}-\frac{1}{3} \text { of } \frac{5}{6} \times \frac{18}{25}}{\frac{25}{12} \text { of } \frac{1}{6} \times \frac{2}{5}+\frac{3}{8} \text { of } \frac{12}{25} \times \frac{5}{6}}$?

Option 1: $-\frac{3}{13}$

Option 2: $-\frac{5}{13}$

Option 3: $-\frac{8}{25}$

Option 4: $-\frac{3}{25}$

Question : A vertical pillar 42 cm long casts a 35 cm long shadow. At the same time, a tower casts a shadow 25 m long. Find the height of the tower.

Option 1: 28 m

Option 2: 35 m

Option 3: 32 m

Option 4: 30 m

Question : A 9 cm long perpendicular is drawn from the centre of the circle to a 24 cm long chord. Find the radius of the circle.

Option 1: 17 cm

Option 2: 18 cm

Option 3: 16 cm

Option 4: 15 cm

Question : Two sides of a parallelogram are 20 cm and 25 cm. If the altitude corresponding to the side of length 25 cm is 10 cm, then the altitude corresponding to the other pair of sides is:

Option 1: 10.5 cm

Option 2: 12 cm

Option 3: 12.5 cm

Option 4: 10 cm