CTET 2 Math and Science 2011 Paper

Question : 45 of 120

Marks: +1, -0

A rectangle is divided horizontally into two equal parts. The upper part is further divided into three equal parts and the lower part is divided into four equal parts.Which fraction of the original rectangle the shaded part ?

3/5
2/7
4/7
7/12

Validate

Solution:

Shaded portion

=\;\;{2l}/{3}×\;\;{b}/{2}+2×\;\;{l}/{4}×\;\;{b}/{2}

=\;\;{lb}/{3}+\;\;{lb}/{4}=\;\;{7lb}/{12}

So, Required fraction

=7/12

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