aptitude test 5

What is the value of (7 3)×5(7+3)×5?

• 35

• 40

• 45

• 50

Solve: 3x−5=16.

• 5

• 7

• 6

• 8

What is the area of a circle with radius 7 cm?

• 154 cm²

• 49 cm²

• 22 cm²

• 100 cm²

Find the perimeter of a rectangle with length 10 cm and breadth 5 cm.

• 20 cm

• 30 cm

• 15 cm

• 25 cm

What is the value of 7 3 7 3?

• 343

• 441

• 512

• 729

What is the chemical formula of methane?

• CH₄

• C₂H₆

• CO₂

• C₆H₆

Which of the following is the hardest substance known?

• Gold

• Diamond

• Iron

• Silver

What is the SI unit of temperature?

• Celsius

• Fahrenheit

• Kelvin

• Joule

What is the primary function of the lungs?

• Digestion

• Circulation

• Breathing

• Excretion

Which element is needed for the formation of hemoglobin in red blood cells?

• Calcium

• Oxygen

• Iron

• Magnesium