Maths Puzzle Ratio and Proportion

If a salesman's average is a new order every other week, he will
break the office record of the year. However, after 28 weeks, he is six
orders behind schedule. In what prop

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Other Question

Find the Compound interest for a sum of RS 9875 in 2 years, if the rate of interest for the first year is 6% and for the second year is 8%:
Option
(A) 1429.9
(B) 1399.9
(C) 1639.9
(D) none The formula y = (x - h) + k confuses me. The equation y = (x + 3)^2 - 4 has h equal to -3 and the equation y = (x - 2)^2 + 5, h equals +2. Why is the sign changed from inside the b