दो व्यक्तियों की मासिक आय 4:5 में है तथा उनके मासिक ब्यय 7:9 के अनुपात में है यदि प्रत्येक व्यक्ति ₹50 प्रति महीने में बचाता है तो उनकी मासिक आय कितनी होगी
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Answer:
let the income be 4x and 5x
and there expenses be 7x and 9x
now
if we subtract there expenses from income we get their savings
now
4x-7y=50
and
5x-9x=50
now by elimination method we get
x=100
and
y=50
now put these values in ratio and u will get the answer
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