Question

The length and breadth of a rectangle are in the ratio 3: 1. If the breadth is 7 cm, then the length of
the rectangle is:
a. 14 cm;
b.16 cm;
c. 18 cm;
d.21 cm
126
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Answer 1

$\huge\boxed{\fcolorbox{white}{blue}{Answer}}$

let length be x,

$\frac{3}{1} = \frac{x}{7} \\ x = 21$

Length=21cm

${\boxed{\pink{option-D}}}$

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Answer 2

let u.q be x.

length=3x

breadth=x

✓

breadth = 7cm = x.

x=7

3x=3*7=21

length=3x=21cm.

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