Question

In Zedland, couriering a parcel costs (i) 3.25 zeds per kg and (ii) a fixed pick-up service charge of 5 zeds.
Shyleja sends some books weighing ‘w’ kg.
Question 13
Which of the following equation below show the correct relationship between courier charge, ‘C’ and the weight, ‘w’?
a) C + 5 = 3.25 × w
b) C = 5 + 3.25 × w
c) C × 5 = 3.25 × w
d) C = 3.25 × 5 × w
Question 14
If Shyleja paid 57 zeds, the weight of her parcel was
a) 10.75 kg
b) 15 kg
c) 16 kg
d) 12.5 kg
Question 15
Iqbal, Cherian and Rahul are close friends. On Rahul’s birthday, Iqbal sent him a photo frame, and Cherian sent him a chess set. The weight of the photo frame was 4 kg more than that of the chess set. How much more did Iqbal pay for couriering his parcel than Cherian?
a) 10 zeds
b) 11 zeds
c) 12 zeds
d) 13 zeds

Answer 1

Answer: question no13 answer "b option"

Step-by-step explanation:

Answer 2

The solutions are C = 3.25 × W + 5, 16 kg and 13 zeds i.e. option b, c and d respectively.

Given:

Cost of couriering a parcel = 3.25 zeds per kg

Fixed pick-up service charge = 5 zeds

To Find:

1. An equation showing the correct relationship between courier charge and weight.

2. The weight of the parcel if Shyleja paid 57 zeds.

3. How much more did Iqbal pay for couriering his parcel than Cherian?

Solution:

We can simply solve this problem by using the following mathematical process.

Let,

Cost of courier charge = C

Weight = W

1. The correct relationship between courier charge and weight is given by

C = 3.25 × W + 5 (Option b)

2. 16kg will be the weight of the parcel. (Option c)

It is known that Shyleja paid 57 zeds

Putting the value of C in the above equation (From 1)

57 = 3.25 × W + 5

3.25 × W = 52

W = $\frac{52}{3.25}$

W = 16

Therefore, 16kg will be the weight of the parcel.

3. Iqbal pays 13 zeds more than Cherian. (Option d)

It is given that the weight of the photo frame is 4kg more than the chess set.

Let,

The weight of the photo frame = x

The weight of the chess set = x-4

Using the equation from 1,

For the photo frame

$C_{1}$ = 3.25x +5

And, for the chess set

$C_{2}$ = 3.25 (x - 4) + 5

$C_{2}$ = 3.25x - 8

Equating both the equations we get,

$C_{1} -C_{2} = 13$

So, Iqbal pays 13 zeds more than Cherian.

Hence, the solutions are C = 3.25 × W + 5, 16 kg and 13 zeds.

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