Question

4. A's monthly income is 20% more than
B's monthly income. B's income is 30%
of C's income. If the gross monthly
income of them is 74700, then find the
C's income.​

Answer 1

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The monthly income of B is 30% more than that of A. The monthly income of A is 10% less than that of C. If the monthly income of C is Rs.3300. What is the monthly income of B?

$\huge{\underline{\boxed{\bf{\red{Answer:-}}}}}$

Given:-

→ C = 100x

→ A = 90x

Explainationtion:-

→ B = 130 × 90x/100 = 117x

★ According to question:-

→ 100x = 3300

→ x = 33

→ B = 117 × 33

$\boxed{\sf{→ B = 3861}}$

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Answer 2

Step-by-step explanation:

let C's monthly income-. X rs

therefore B's monthly income - 30% of X or; 3x/10

A's monthly income- 20% of B's income + B's income or 18x/50

now

A's monthly income+ B's monthly income+C's monthly income = 74700

18x/50 + 3x/10 + X = 74700

83x/50 = 74700

83x = 3735000

X = 3735000÷83 = 45000

So C's monthly income = 45000 RS