Question

19 soap cakes rupees 209 how many soap cakes can be bought for rupees 341

Answer 1

length of box = 56cm
breadth = 0.4m = 40cm
height = o.25m = 25cm

Volume of Box = Volume of soap × n
n = number of soaps.
LBH = lbh × n
56 × 40 × 25 = 7 × 5 × 2.5 × n
n = 56×40×25/35×2.5
n = 56000/87.5
n = 640

so, 640 soaps can be placed in the box.

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Answer 2

and is 31 as
$x \times 19 = 209 \\ x = \frac{209 }{19 } \\ x = 11 \\ as \: we \: know \: that \: 1 \: article \: cost \: rs11 \: \\ then \: no \: of \: rticle \: can \: be \: bought \: is \\ x \times 11 = 341 \\ x = 341 \div 11 = 33$
hence 31 soap cake can be bought in Rs 341