Grade VIII - Inter School Math Quiz

Solve the expression:

^-2/₃ + -0.25 = _____

• ^-2/₁₂

• ^-11/₁₂

• ^-3/₇

• ¹/₇

 $5.65\div-0.5$  

• 11.3

• -11.3

• -1.13

• 1.13

A basket contains three types of fruits weighing 58/3 kg in all. If 73/9 kg of these be apples, 19/6 kg be oranges and the rest pears. What is the weight of the pears in the basket?

A drum full of rice weighs 241/6 kg. If the empty drum weighs 55/4 kg, find the weight of rice in the drum.

• weight of the empty drum is more than weight of the rice

• both the weighs are same

• weight of drum is lesser than the weight of the rice

8 x 10¹⁰=?

3.78 x 10⁷=?

• 378,000,000

• 80,000,000,000

• 37,800,000

• 8,000,000

Answer explanation

10¹⁰=10,000,000,000x8=80,000,000

10⁷=10,000,000x3.78=37,800,000

Shreya is comparing the heights of two trees in her backyard. One tree is 27 feet tall, and the other tree is 26 feet tall. Find the difference in their heights without calculating the squares.

(i) square of 27 – square of 26

• 1

• 53

• 27

• 73

Which statements are not true?

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Multiply (6x² – 5x + 3) by (3x² + 7x – 3)

• 18x⁴ + 27x³ – 44x² + 36x – 9

• 18x + 27x – 44x + 36x – 9

• 18x⁴ + 42x³ – 15x³ – 18x² – 35x² + 9x² + 15x + 21x – 9

• 18x⁴ + 42x³ – 15x³ – 18x² – 35x² + 9x² + 15x + 21x – 9

Six identical drums of oil weigh 90 kg in total.

How much would 4 drums weigh?

• 60 kg

• 50 kg

• 80 kg

• 75 kg

8 cows can graze a field in 25 days.

How long would 10 cows take to graze the same field?