Question

A's income is rs 140 more than b's income & c's income is rs. 80 more than d's. if the ratio of a's & c's income is 2:3 & the ratio of b's & d'd income is 1:2 then the incomes of a, b, c & d are respectively

Answer 1

Atq

3/2(c:a) = (d+80)/(b+140)
by cross multiplication
3b+420=2d+160
from B/D = 1/2, solve for D to get D = 2B 
so 3b+420=4b+160
420-160=4b-3b
₹260=b

a is 140 more than b

so a = ₹400

a:c = 2:3

so c=1.5a =₹600

b:d = 1:2
so d= 2×b = 2×260= ₹520