A company
manufactures small electronic
components called diodes. Each diode
is worth $1.50. Plant A produced 4443
diodes and Plant B produced 5557
diodes. The supervisor was asked what
the total value of all the diodes was.
The supervisor immediately responded
“$15,000.” The supervisor would not
have been able to compute the value so
quickly if he had to multiply $1.50 by
4443 and then add this to the result
of $1.50 times 5557. Explain how you
think the supervisor got the answer so
quickly?

Question

A company 
manufactures small electronic 
components called diodes. Each diode 
is worth $1.50. Plant A produced 4443 
diodes and Plant B produced 5557 
diodes. The supervisor was asked what 
the total value of all the diodes was. 
The supervisor immediately responded 
“$15,000.” The supervisor would not 
have been able to compute the value so 
quickly if he had to multiply $1.50 by 
4443 and then add this to the result 
of $1.50 times 5557. Explain how you 
think the supervisor got the answer so 
quickly?

anonymous · Answer

Estimation ...4500 + 5500 = 10000 diodes ...multiplied by 1.5 is 15k

anonymous · Answer

I think it would be estimation of 4000 + 6000 = 10000 diodes multiplied by 1.50

anonymous · Answer

thanks to both :)

anonymous · Answer

No problem