Maths (7A) NICK AND TESLA'S HIGH VOLTAGE DANGER LAB- Term 2

The perimeter of the Landrigan square shaped estate is ____ to the side of the square.

• Directly proportional

• Inversely proportional

Nick has (p² - q²) batteries, that is the same as

• (p + q)²

• (p + q)² (p - q)²

• (p + q) (p - q)

• p²- 2pq + q²

Tesla said "The hypotenuse is the ____ side of the right-angle triangle."

• Longest

• Shortest

• height

Uncle Newt spends ₹ 400 on apparatus for experiments over 10 days. In the same proportion, how much will he spend over 28 days?

• ₹ 800

• ₹ 1,120

• ₹ 1,200

• ₹ 1,000

0.75 metre cloth costs ₹ 45. Sergeant Feiffer needs only 0.6 m to stitch a uniform vest. How much will it cost him?

• ₹ 40

• ₹ 30

• ₹ 36

• ₹ 42

Nick has (3x + 2y)² batteries, this is same as

• 9x² - 12xy + 4y²

• 3x² + 12xy + 2y²

• 9x² + 12xy - 12xy + 4y²

• 9x² + 12xy + 4y²

Tesla has (x - 2y)² magnets, this is same as

• x² + 4xy - 4y²

• - 4xy + 4y² + x²

• x² - 4xy + 4xy + 4y²

• x² + 4xy + 4y²

How much distance will Tesla cover to go from point A to B?

• 18 units

• 12 units

• 13 units

• 8 units

The harvested water lasts for 30 days and is sufficient for a suburb of San Francisco with 4000 habitants. How many days will it last for a suburb with 6000 habitants?

• 15 days

• 20 days

• 25 days

• 18 days

If 78 policemen can set up a security jail in 140 days, how many days will 42 policemen do the same work in?

• 220 days

• 240 days

• 260 days

• 280 days