University:
University of Cambridge
Course:
0580 IGCSE | Mathematics
Academic year:

2024
Views:

359

Pages:

3
Author:

Shahbaz A.

words problems shahbaz ahmed July 2024 Q1 When five is added to three more than a certain number, the result is 19. What is the number? Solution Let number=x According to the condition x + 3 + 5 = 19 x + 8 = 19 x + 8 − 8 = 19 − 8 x = 11 .......................................................................... Q2 If five is subtracted from three times a certain number, the result is 10. What is the number? Solution Let number=x Three times number=3x According to the condition 1 3x − 5 = 10 3x − 5 + 5 = 10 + 5 3x = 15 x= 15 3 =5 ......................................................................... Q3 When 18 is subtracted from six times a certain number, the result is−42 . What is the number? Solution Let number=x Six times number=6x According to the condition 6x − 18 = −42 6x − 18 + 18 = −42 + 18 6x = −24 x = − 24 6 = −4 ................................................................... Q4 A certain number added twice to itself equals 96. What is the number? Solution Let number=x Twice to itself=2x According to the condition x + 2x = 96 3x = 96 x= 96 3 = 32 ....................................................................... 2 Q5 The length of a rectangle is 5m greater than the width. The perimeter is 150m. Find the width and length Solution Let width=x Length=x+5 Perimeter=150 Also Perimeter= 2((length+width)=150 Putting the values of length and width 2((x + 5 + x) = 150 2(2x + 5) = 150 4x + 10 = 150 4x + 10 − 10 = 150 − 10 4x = 140 x= 140 4 = 35 Width =35 m Length=35+5=40 m 3