Out of a sample of 80 batteries, 3 are faulty. What percentage of the batteries are faulty?
80F = 100 | F = 10/8 | 3(10/8) = 3.75 | Therefore, 3.75% of the batteries are faulty.
PS
Related Maths GCSE answers
All answers ▸The straight line L1 passes through the points with coordinates (4, 6) and (12, 2) The straight line L2 passes through the origin and has gradient -3. The lines L1 and L2 intersect at point P. Find the coordinates of P.
x – 7x + 10 = 0
Solve for x: x^2 + 6x + 8 = 0
Make r the subject of the formula x = (3r - 4)/5