Asha's monthly income is 60% of Deepak's monthly income and 120% of Maya's income. What is Maya's monthly income if Deepak's monthly income is Rs. 78000 ?
Correct Answer: Rs. 39000
Asha's monthly income :
= 60% of 78000
$$\eqalign{ & = {\text{Rs}}{\text{. }}\left( {\frac{{60}}{{100}} \times 78000} \right) \cr & {\text{ = Rs}}{\text{. 46800}} \cr} $$
Let Maya's monthly income be Rs. x
Then,
120% of x = 46800
$$\eqalign{ & \Rightarrow {\text{x}} = \left( {\frac{{46800 \times 100}}{{120}}} \right) \cr & \Rightarrow {\text{x}} = 39000 \cr} $$
= 60% of 78000
$$\eqalign{ & = {\text{Rs}}{\text{. }}\left( {\frac{{60}}{{100}} \times 78000} \right) \cr & {\text{ = Rs}}{\text{. 46800}} \cr} $$
Let Maya's monthly income be Rs. x
Then,
120% of x = 46800
$$\eqalign{ & \Rightarrow {\text{x}} = \left( {\frac{{46800 \times 100}}{{120}}} \right) \cr & \Rightarrow {\text{x}} = 39000 \cr} $$
