variances… another question

the following is a worked example in the text and i dont get it at all
——————————————————————–
– purchases of materials are recorded at std cost
– direct material costs and direct labor are variable
– POH are fixed and absorbed using direct labor hours.

Actual and budgeted data for last month is as follows:

– budgeted direct materials/unit is 2 kg at$5/kg
– direct labor 0.5 hours/unit
– budgeted prod 10,000
– 22,500 kg of materials were purchased
– total standard cost of materials was 115,000
– 6000 direct labor hours were worked at $6/hr
– budgeted fixed POH were 240,000
– actual fixed POH were 260,000

– material price variance 11,250 A
– labor efficiency var 1750 A
—————————————————————

the above is verbaturm

question: how many widgets were produced?

this was the first part (1/10) and i cd not get it. It simply says 11,500 were produced.

i am doing:

u purchased 22,500 kgs, which means u used an extra 2500 kg in production.

that means 25000/2 – 1250 extra units were produced, making a total of 11,250.

where am i going wrong?