In a year, Seema earns Rs. 1,50,000 and saves Rs 50,000. Find the ratio of 

(a) Money that Seema earns to the money she saves. 

(b) Money that she saves to the money she spends.

In a year,

Seema earns = Rs. 1,50,000

Seema saves = Rs. 50,000

Money spend = 1,50,000 - 50, 000 = 1,00,000

(a) 

Money that Seema earns : the money she saves = 1,50,000 : 50,000 = $\frac{150000}{50000}=\frac{15}{5}=\frac{3}{1}$ = 3:1

Money that Seema earns : the money she saves =  3:1

(b) 

Money that she saves : the money she spends = 50,000 : 1,00,000 = $\frac{50000}{100000} =\frac{1}{2}$ = 1:2

Money that she saves : the money she spends = 1:2