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Fractions | Fractions Exercise 2C

Question 21

18 boxes of nails weigh equally and their total weight is [49(1/2)] kg. How much does each box weigh?

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Solution:-

From the question,

Total weight of boxes= [49(1/2)] kg = (99/2)

Number of boxes = 18

Then we have,

= (99/2) ÷ (18/1)

= (99/2) × (1/18)

(Because reciprocal of (18/1) is (1/18)

= (99 × 1) / (2 × 18)

= (11×1) / (2×2)

= (11 / 4)

= [2(3/4)] kg

Hence, the weight of each box is [2(3/4)] kg

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Question 21

18 boxes of nails weigh equally and their total weight is [49(1/2)] kg. How much does each box weigh?

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Solution:-

From the question,

Total weight of boxes= [49(1/2)] kg = (99/2)

Number of boxes = 18

Then we have,

= (99/2) ÷ (18/1)

= (99/2) × (1/18)

(Because reciprocal of (18/1) is (1/18)

= (99 × 1) / (2 × 18)

= (11×1) / (2×2)

= (11 / 4)

= [2(3/4)] kg

Hence, the weight of each box is [2(3/4)] kg

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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