Question

2.
3.
If 5 pencils cost 26, find the cost of 3 dozen such pencils.
The price of 4 metres woollen suiting is 1350. Find the price of 9 meter of such suiting​

Answer 1

Answer:

2] Answer

Given :

Cost of 5 pencils = Rs 26

Find the cost of 1 pencil :-

By unitary method

5 pencils = Rs 26

1 pencil = Rs (26/5) = Rs 5.2

Find the pencils in 3 Dozens :-

1 Dozen = 12 pencils

3 Dozens = 12 × 3 = 36 pencils

Now,

Find the cost of 36 pencils :-

By unitary method

1 pencil = Rs 5.2

36 pencils = Rs (5.2 × 36) = Rs 187.2

Hence,

Cost of 3 Dozens pencils = Rs 187.2

Answer 2

Answer:

2.

1 pencil cost=X

5x=26

X=26/5

X=5.2

3 pencil cost=3×5.2

cost=15.6

3.

the price of 1 mitre wollen=X

4x=1350

X=1350/4

X=337.5

the price of 9 mitre wollen=337.5×9

price=3037.5