1.5 L would appear to be 1.5 Litres. ( 1 1/2 Litres).
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Suppose length is L cm. Then Width = L-15 cm Perimeter = 2*(W+L) = 2*(L-15 + L) = 2*(2L - 15) = 4L - 30 cm So 4L - 30 = 98 so that 4L = 128 and then L = 32 cm Then W = L - 15 = 32- 15 = 17 cm. So the rectangle is 32 cm * 17 cm
Designate the larger number as l and the smaller number as s. Then l + s = 47 and l - s = 15. From the second of these two equations, s = l - 15; substituting this value into the first equation results in l + l - 15 = 47 or 2l = 47 + 15 = 62, or l = 31.
15000L
15
= 1 kl