IGCSE Mathematics Paper-1: Specimen Questions with Answers 128 - 131 of 324

Question 128

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Short Answer▾

Solve , Answer as a fraction in its lowest terms.

Explanation

Here,

Now, if we inverse denominator of it will give multiplication:

Question 129

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Essay▾

A 5 years old boy has given by her mother to buy chocolates. He buys chocolates of price 20 cents each and 8 chocolates of price 10 cents each. How much money does he has left?

Explanation

Here, a 5 years old boy has

  • He buys chocolates of price 20 cents each.

So,

Then

  • He also buys 8 chocolates of price 10 cents each.

So, for 8 chocolates price =

So, he spends total of

Now,

So,

So, he has left

Question 130

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Short Answer▾

Monalisha weighs up her vegetables to the nearest 5 grams. She weighs up a Potato as 50 grams. Complete the statement below.

Explanation

Here, Monalisha weighs up her vegetables to the nearest 5 grams and she weighs up a Potato as 50 grams.

  • If weight is 52.5 which is middle of 55 and 50 then it will weigh by nearest weight 50 g.
  • If weight is 47.5 which is middle of 45 and 50 then it will weigh by 50 g.
  • So, Statement will be like this: .

Question 131

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Short Answer▾

(a. Find the value of x.

(b) . Find the value of y.

(c) . Find the value of a.

Explanation

Here,

(a

So, because multiplication of same based term will give addition of their exponent.

because base is same of all exponents.

(b)

So, because division of same based term will give subtraction of their exponent.

because base is same of all exponents.

(c) .

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