CIE Mathematics Paper-1: Specimen Questions 86 - 89 of 175

Question number: 86

Essay Question▾

Describe in Detail

Mahesh and Jayraj share $72 in the ratio 7:5 . How much does Mahesh receive?

Explanation

Here, Total money is $72.

Ratio of Mahesh and Jayraj’s sharing is 7:5 . So, total is 7+5=12.

So, Mahesh has 712 and Jayraj has 512 money.

So, Mahesh will have 712×72=42$ and Jayraj will have 512×72=30$ .

Question number: 87

Short Answer Question▾

Write in Short

Solve 3x+6=78 .

Explanation

Here, equation is 3x+6=78

3x=72

x=24

Question number: 88

Short Answer Question▾

Write in Short

The net of a solid is drawn accurately below.

Three triangles making a solid

Three triangles making a solid

Find the below mentioned names of triangles and solid

Write down the special name for

(a) The triangles shown on the net,

(b) The solid.

Explanation

Here,

(a) The triangles shown on the net are equilateral triangles, because middle triangle’s edges having adjacent triangles fit with it.

  • Equilateral Triangles are those which have equal length of sides.

(b) The solid of net image will called as Regular Pyramid or Triangular Pyramid.

  • A regular pyramid has three equilateral triangles and three identical isosceles triangle sides.

Question number: 89

Short Answer Question▾

Write in Short

Hand wash liquid is sold in two sizes, 700 ml and 1.6 liter.

Two different quantities hand wash bottles

Two different quantities hand wash bottles

Find the better value of money of hand wash bottle as per quantity

Explanation

A contains 700 ml and costs 70 Rs. B contains 1.6 liters and costs 160 Rs. Which is the better value for money?

Explanation: Here,

Bottle A contains 700 ml for 70 Rs. and B contains 1.6 liters and costs 160 Rs.

So, for comparison of both bottles we need to convert liter into ml.

Now, for B: 1.6 liter (1600 ml) = 160 Rs.

So, Money for 700 ml =? Rs.

700×1601600=70Rs.

Thus, money for 700 ml for A = 70 Rs. and money for 700 ml for B = 70 Rs. which is equal for both.

So, both bottles have better values.

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