Maths (7B) The Rain Harvesters - Term 2

The perimeter of the Chelo's square shaped garden is ____ to the side of the square.

• Directly proportional

• Inversely proportional

Sunita has (p² - q²) pipes, that is the same as

• (p + q)²

• (p + q)² (p - q)²

• (p + q) (p - q)

• p²- 2pq + q²

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

• Longest

• Shortest

• height

Through rainwater harvesting Sunita collects 400 litres of water in 10 days. In the same proportion, how much water will she collect over 28 days?

• 800 litres

• 1,120 litres

• 1,200 litres

• 1,000 litres

0.75 metre cloth costs ₹ 45. Sunita needs only 0.6 m to make a scarf for her grandmother. How much will it cost her?

• ₹ 40

• ₹ 30

• ₹ 36

• ₹ 42

Rakesh has (3x + 2y)² pipes, this is same as

• 9x² - 12xy + 4y²

• 9x² + 12xy - 12xy + 4y²

• 3x² + 12xy + 2y²

• 9x² + 12xy + 4y²

Mr Sharma has (x - 2y)² water tanks, this is same as

• x² + 4xy - 4y²

• - 4xy + 4y² + x²

• x² + 4xy + 4y²

• x² - 4xy + 4xy + 4y²

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

• 18 units

• 12 units

• 13 units

• 8 units

The harvested water last for 30 days for 4000 people in Shaktipur. How many days will it last for 6000 people of Baramati?

• 15 days

• 20 days

• 25 days

• 18 days

If 78 men are required to build a dam in Shaktipur in 140 days, how many days will 42 men take to do the same work?

• 220 days

• 240 days

• 260 days

• 280 days