CIE Mathematics Paper-1: Specimen Questions 59 - 60 of 175
Question number: 59
Write in Short
Write down the equation of the straight line through which is parallel to .
Here, straight line through is parallel to , which has slope m = 4, by comparing to y = mx + c.
So, the parallel lines always have same slope…… (I)
So, we can find equation for straight line passing through point by using:
, where, and m = 4… (from (I) ).
Question number: 60
Describe in Detail
Kavya bought 24 books at a cost of . She sold 18 books at per book and 6 books at per book.
(a) Calculate the profit or loss she made.
(b) Calculate this profit or loss as a percentage of the original cost.
Here, Kavya bought 24 books at a cost of .
So, cost price CP =
Now, she sold 18 books at per book:
She sold 6 books at per book:
So, total selling prices SP =
(a) Here, selling price is less than cost price, so she made loss.
(b) Percentage of loss of the original cost :