The number of pomegranates Ben bought in February was 30% more than in January. In March, he bought 70% less pomegranates than in February. If there were 610 more pomegranates in January than March, how many pomegranates did Ben buy in January?

January	February	March
10x10	13x10
	10x13	3x13
100 u	130 u	39 u

100% + 30 = 130%
130% = ¹³⁰₁₀₀ = ¹³₁₀
February : January = 13 : 10 

100% - 70% = 30%
30% = ³⁰₁₀₀ = ³₁₀
March : February = 3 : 10

The number of pomegranates in February is repeated.  Make the number of pomegranates in February is the same.  LCM of 13 and 10 is 130.

Number of more pomegranates in January than March
= 100 u - 39 u
= 61 u

61 u = 610

1 u = 610 ÷ 61 = 10

Number of pomegranates that Ben bought in January
= 100 u
= 100 x 10
= 1000

Answer(s): 1000