Question

The total salary of Kabeer and Faysal in an
organisation is Rs. 28000. Kabeer & Faysal's
salary is increased by 6% and 8% respectively,
then their increased total salary will be Rs.
29940. Find the salary of Kabeer?
(c) Rs. 20000
{a) Rs. 15000 (b) Rs. 18000
(d) Rs. 10000 (e) Rs. 12000​

Answer 1

Answer:

(a) Rs. 15000

Step-by-step explanation:

let kabeer and faysal's salary be represented by x and y respectively.

so, x + y = 28000 ---- I

and then the equation for the increment in salaries be:

1.06x + 1.08y = 29,940 ---- II

making x the subject of formula in equation I,

we have, x = 28,000 - y ----- III

substituting ( III ) into (II)

1.06 (28000 - y) + 1.08y = 29940

29680 - 1.06y + 1.08y = 29,940

29680 + 0.02y = 29940

0.02y = 260

y = 260/0.02 = 13,000

substituting in equ I

x + 13,000 = 28000

x = 15000

x representing kabeer's salary is Rs. 15000