IGCSE Mathematics Paper-1: Specimen Questions with Answers 155 - 157 of 324

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Question 155

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The line with equation passes through the point (4,0) . Find k.


Here, equation is and point passing through it is (4,0) .

So, (x, y) = (4, 0) put it in the equation:

Question 156

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Look at the sequence of numbers

(a) Write down the next number in the sequence.

(b) Find the 8th number in the sequence.

(c) Write an expression, in terms of n, for the nth number in the sequence.


Here, sequence is

(a) Here, these numbers are even numbers and also this sequence is having the numbers like:

So, here bold numbers are not in sequence, so after 16 there will be 20.

(b) Here, further sequence is like:

So, 32 will be the 8th number in the series.

(c) Expression in terms of n of sequence where .

  • So, first term will get by:
  • Second term will get by:
  • Third term will get by: and so on.

Question 157

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Roomy borrows from a loan company for his new business. The loan company charges simple interest of per year. How much interest will Roomy pay after 4 years?


Here, Roomy borrows loan of for simple interest per year.

So, here, Price P = Rate (R) = 5 % per annum and Time (T) = 4 years.

So, by using the formula of simple interest .

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