The modal weight of the parcels at a courier counter is 2.5 kg. Each parcel's weight is converted to grams and then 50 g of packing is added to each. What is the new modal weight?

2.55 gCorrect answerYour answer2500 gCorrect answerYour answer2550 gCorrect answerYour answer52500 gCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Converting kg to g multiplies every weight by 1000: the mode becomes 2,500 g.
Adding 50 g to every parcel adds 50 g to the mode: 2,550 g.

Worth noting

2,500 g forgets the packing. 52,500 g adds the 50 before converting ( $2.5 + 50 = 52.5$ kg), and 2.55 g changes the number without converting the unit.

Concept: Converting units and shifting every value changes the mode the same way
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsWhen values change

Practise this chapter →

Ten questions from Mean, Median and Mode, at your own pace.

The modal weight of the parcels at a courier counter is 2.5 kg. Each parcel's weight is converted to grams and then 50 g of packing is added to each. What is the new modal weight?

Explanation