Question

The cost of 16 packets of salt,each weighing 900 grams is Rs.28.What will be the
cost of 27 packets ,if each packet weighs 1Kg?
1. Rs.52.50
2. Rs.56
3. Rs.58.50
4. Rs.64.75

Answer 1

Let the required cost be ₹x.

Then,More packets, More cost (Direct Proportion)

More weight, More cost (Direct Proportion)

Packets 16 : 27

Weight 900 : 1000 :: 28 : x

(16 x 900 x x) = (27 x 1000 x 28)

x = (27 x 1000 x 28) /16 x 900

= 105 /2

= 52.50

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