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The sum of radii of two circles is 140 cm and the difference of their circumference is 88 cm. The diameters of the circles are

(a)

77 cm, 63 cm

(b)

150 cm, 120 cm

(c)

154 cm, 126 cm

(d)

160 cm, 120 cm


Question ID - 50530 | Toppr Answer

The sum of radii of two circles is 140 cm and the difference of their circumference is 88 cm. The diameters of the circles are

(a)

77 cm, 63 cm

(b)

150 cm, 120 cm

(c)

154 cm, 126 cm

(d)

160 cm, 120 cm

1 Answer - 5876 Votes

3537

Answer Key : (c) -

We have:    …

 

And,  

 

Solving  we get

 

So, the diameters of the circles are 154 cm and 126 cm.



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