Question

The electroplaques in an eel are arranged in 100 rows, each row stretching horizontally along the body of the fish containing 5000 electroplaques. The arrangement is suggestively shown below. Each electroplaques has an emf of 0.15 v and internal resistance of 0.25 the water surrounding the eel completes a circuit between the head and its tail if the water surrounding it has a resistance of 500 the current an eel can produce in water is about (a) 15a (b) 3.0 a (c) 15 a (d) 30

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Secondary School Math 5 points

A tin of oil was 4/5 full. When 6 bottles of oil was taken out and 4 bottles of oli were poured into it , it was 3/4 full. How many bottles of the oil the tin contain

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BRAINLYY

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A TIN WAS ------- 4/5 FULL

WHEN 6 BOTTLES OUT 4 BOTTLES IN

THEREFORE, TOTAL 2 BOTTLES OUT

THEN TIN CAN WAS -------- 3/4 FULL

IT MEANS

4/5 OF CAN - 3/4 OF CAN = 2 BOTTLES

LET CAPACITY OF CAN BE x BOTTLES

THEN,

4/5 x - 3/4 x = 2

(16 - 15 /20) x = 2

1 x / 20 = 2

x = 2 × 20

=> x = 40