The respective ratio between Kuntal?s, Shobha?s and Sunayana?s monthly income is 141 : 172 : 123. If Shobha?s annual income is 3.38,400, wh… — Answer & Discussion

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The respective ratio between Kuntal?s, Shobha?s and Sunayana?s monthly income is 141 : 172 : 123. If Shobha?s annual income is 3.38,400, what is Sunayana?s annual income ? (In some cases monthly income and in some cases annual income is used.)

A4,12,800
B3.63,500
C3,17,600
D2,95,200

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Discussion 1

CCommunity17 May 2019

Solution
Let the sum of Kuntal’s, Shobha’s and Sunayana’s annual income be x
Shobha's annual income = $ 172/(141+172+123) \times x $ = 338400
x = $ 436/172 \times 338400 $
Sunayana’s annual income = $123/436 \times x $

= $ 123/436 \times 436/172 \times 338400 $
= $ 123/172 \times 338400 $
= 2,95,200