Question

Q.6 Solved the problems :-
(any 2)
a. Show that 5,25, 125
are in continued pro
b. If 30 metres of cloth cost RS. 2400, what is
C. The length of three ribbons are in the ratic
the three ribbons is 42 cm, find the length of
X​

Answer 1

Answer:

a. 1/5 or 1

5

b. Rs 40,000

Step-by-step explanation:

Since 5×5 = 25 and 25×5 = 125

therefore it can be said that they are in proportion.

OR

• For continued proportion of three number

that is 5 , 25 and 125

LHS

= 5/25

= 1/5

Now RHS

= 25/125

= 1/5

•°• So, 5/25 = 25/125 = 1/5

b. Cost of 30m cloth = Rs 2400

Cost of 1m cloth = 30m

Cost of 50m cloth = 2400. ×5

30

= 800 × 5

= 4000 (Ans:-)

•°• The cost of 50m cloth is 4000.