Self Maths Puzzle Numerical Ability Ratio and Proportion

one year ago A's &B's salary ratio was3/5. the ratio of their salaries last year and present year are 2/3 and 4/5 respectively.if their total salaries for the present year are 4300.find the present salary of A?

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Self Other Question
arrange consecutive 16 numbers in a 4 X 4 mtrix such that the sum of elements in diagonal =sum of elemnets in each row =sum of elements in each column One quantity of what costing Rs. 9.30 per kg is mixed with another quantity of wheat costing Rs. 10.80 per kg, then what will be the ratio in which they must b mixed so that the net cost is Rs. 10 per kg?