Question
Ratio of income of A and B is 7:5 and the ratio of
expenditure of A and B is 2:3. The savings of B is Rs.3500. If the expenditure of A gets double then the saving of A becomes Rs.5000. Find the income of B.Solution
Let the income of A and B be 7x and 5x respectively. And expenditure of A and B be 2y and 3y respectively. According to question, => 5x – 3y = 3500 ----- (i) And => 7x – 4y = 5000 ----- (ii) Solving (i) and (ii) we get, => x = 1000 and y = 500 Therefore the income of B = 5x = Rs.5000
11, 12, 20, 58, 234, 1168
630, 180, 60, 24, 12, 8, 5
1, 18, 44, 81, 131, 198
66, 220, 384, 543, 702, 861
Find the wrong number in the given number series.
119, 200, 300, 417, 565
In each of the following, one term is wrong. Find the WRONG term.
3, 5, 8, 14, 21, 34, 55
Find the wrong number in the given number series.
231, 241, 233, 239, 235, 243Find the wrong number in the given number series.
976, 720, 495, 297, 130, - 14Â
120, 140, 178, 232, 300, 360
126, 295, 520, 807, 1170, 1611