.
From Wikipedia, the free encyclopedia (https://en.wikipedia.org/wiki/Lakh)
    A lakh (/læk, lɑːk/; abbreviated L; is a unit in the Indian numbering system 
    equal to one hundred thousand (100,000; scientific notation: 
).
Solution
They should divide this amount in the ratio Kane to Abel as 7 to 9.
It is easy to calculate mentally.
There are 7 + 9 = 16 equal parts;  each part of  
 = 20000 rupees.
Kane obtains 7*20000 = 140,000 rupees.
Abel obtains 9*20000 = 180,000 rupees.
Answered, explained and solved.