IGCSE Mathematics Paper-1: Specimen Questions with Answers 146 - 149 of 175

Question number: 146

Edit
Short Answer Question▾

Write in Short

Solve

Explanation

Here, equation is

  • So, now multiply 6 with the terms inside the brackets:
  • Now, simplify as: .

Question number: 147

Edit
Short Answer Question▾

Write in Short

The scale on a map is 1: 250000 and road is 4.6 centimeters long on the map. Find actual length of the road in kilometers.

Explanation

Here, meaning of 1: 250000 is 1 cm long road is magnified by 250000 times on the map.

  • So, here 4.6 cm long road on the map can be
  • Now, 100 cm = 1 m, so 115000 cm =?

  • Now, 1000 m = 1 km, so 11500 m =?

  • So, length of road is 11.5 kilometers.

Question number: 148

Edit
One Liner Question▾

Write in Brief

Solve

Explanation

Here,

  • So, as per BODMAS calculation, expression will be:
  • So, first of all as per BODMAS (Brackets, Order, Division, Multiplication, Addition, Subtraction) brackets will be removed, in that also first of all multiplication will be:
  • Then in brackets subtraction will be:
  • Now, in brackets multiplication will be:
  • Now, division will be: .

Question number: 149

Edit
Short Answer Question▾

Write in Short

The average temperatures in Toronto of Canada for each month are shown in the table below.

Torontos average temperature of each month

Showing the average temperature of Toronto of every month

Month

Jan

Feb

Mar

Apr

May

June

July

Aug

Sep

Oct

Nov

Dec

Temp

-4.63

-4.13

0.43

6.27

11.97

17.23

20.6

20.3

16.3

10.1

4.67

-1.53

(a) Which month has the highest average temperature?

(b) Find the difference between the average temperatures in June and December.

Explanation

Here,

(a) Here, as shown in table, June and July has highest temperature but out of which July has 20.6 which is higher than all.

(b) Here, average temperature of June is 17.23 and December is -1.53.

So, difference between the average temperatures in June and December is: which means temperature in June is higher than in December.

Developed by: