IGCSE Mathematics Paper-1: Specimen Questions with Answers 89 - 91 of 324
Question 89
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Short Answer▾Hand wash liquid is sold in two sizes, 700 ml and 1.6 liter.
Explanation
A contains 700 ml and costs 70 ₹ B contains 1.6 liters and costs 160 ₹ Which is the better value for money?
Explanation: Here,
Bottle A contains 700 ml for 70 ₹ and B contains 1.6 liters and costs 160 ₹
So, for comparison of both bottles we need to convert liter into ml.
Now, for B: 1.6 liter (1,600 ml) = 160 ₹
So, Money for 700 ml = ? ₹
Thus, money for 700 ml for A = 70 ₹ and money for 700 ml for B = 70 ₹ . which is equal for both.
So, both bottles have better values.
Question 90
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Short Answer▾A note of 10 rupees of India like a rectangle is having 137 mm of width and 63 mm of height. Calculate the area of the note.
[The area of a rectangle, width w, height h, is . ]
Explanation
Here, note is having the shape like a rectangle with 137 mm of width and 63 mm of height.
We need to find the area of the note, so formula of a rectangle area: , which is given,
So, area of note =
Question 91
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Short Answer▾The surface area of the Moon is 37 900 000 . Write this number in standard form.
Explanation
Here,
(a) The surface area of the Moon is 37 900 000
So, standard from will be: