Ex 11.2, 4 - Chapter 11 Class 8 Direct and Inverse Proportions

Last updated at April 16, 2024 by Teachoo

Transcript

Ex 11.2, 4 If a box of sweets is divided among 24 children, they will get 5 sweets each. How many would each get, if the number of the children is reduced by 4?Given,
If sweets are divided among 24 children, each gets 5.
If the number of children is reduced by 4,
Number of children left = 24 – 4 = 20
We need to find how many sweets will a child get
Let the number of sweets be 𝒚
Thus, our table looks like
As the number of children increases,
the number of sweets each child gets decreases.
∴ They are in inverse proportion
24 × 5 = 20 × 𝒚
(24 × 5)/20 = 𝑦
24/4 = 𝑦
6 = 𝑦
𝒚 = 6
∴ Each child will get 6 sweets

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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