Shampoo is sold in two sizes.
The family size costs £3.48 and contains 270ml.
The regular size costs £1.99 and contains 160ml.
Which size is better value for money?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

Regular size

Family size

Both 1 and 2

None of the above

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Concept- In this case, we will compare the items. Either the amount or the money value can be compared. However, they should have the same quantity or financial value for that. i.e., 10ml for both, or the amount we will receive for £1.
With respect to quantity, we will compare.
For the family size, the cost of 270ml for a family is £3.48. We will determine the price of 10ml. So, we'll apply a unitary approach.
The Cost of 10ml is,

The cost of 10ml shampoo for a family is £0.128.
For the regular size, the cost of 160ml for a family is £1.99. We will determine the price of 10ml. So, we will apply a unitary approach.
The Cost of 10ml is,

The cost of 10ml shampoo for a family is £0.124.
As a result, 10 ml of shampoo costs £0.124 for the regular size. Therefore, regular size offers better value.
Hence, the correct answer is option 1.

Watch 3-min video & get full concept clarity