IGCSE Mathematics Paper-1: Specimen Questions with Answers 283 - 289 of 324

Question 283

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Short Answer▾

Jaya sold 600 kg tomatoes for 5000 and earned a profit of 15 % . If she sold them at? 20 per kg, find her profit or loss.

Explanation

  • Selling price of 600 kg tomatoes is 5000 ₹
  • Profit %= 15 %

Now,

New rate of selling is 20 ₹ /kg

New selling price of 600 kg tomatoes is

it՚s a profit

Question 284

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Explanation

Question 285

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Short Answer▾

Estimate the sum by first rounding each number to the nearest ten.

Explanation

  • First round each number to the nearest ten.

  • The sum of the rounding each number

  • The estimate is 2790.

Question 286

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From the values listed above, write down

A square number.

Explanation

Here given the value is

The equal value of is 0.082.

Question 287

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.

Write as a column vector.

Explanation

Here given the

Question 288

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Short Answer▾

Write down the value of n each of the following statements.

Explanation

  • Here given the

  • It is a scientific notation

    Here

Question 289

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Short Answer▾

What is the order of rotational-symmetry of an equilateral triangle?

Explanation

  • We have to check, how many times an equilateral triangle fits on to itself during a full rotation of 360 degrees.
  • Please look at the images of the equilateral triangle in the order A, B and C.
  • A is the original image. The images B and C are generated by rotating the original image A.
The Equilateral Triangle
  • When we look at the above images of equilateral triangle, it fits on to itself 3 times during a full rotation of 360 degrees.
  • Hence, an equilateral triangle has rotational symmetry of order 3.

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