solve the following plz
Answers
Answer:
Hey dear, here is your answer.....
I expect you will find it helpful..
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1. In question 1, you have described half
of the question. The whole question is
like this:-
If L varies directly as M.
(¡) write an equation which relates L and
M.
(¡¡) Find the constant of proportion(k),
when L is 6 then M is 18.
(¡¡¡) Find L, when M is 33.
(¡v) Find M, when L is 8.
As, you want the answer of (¡¡¡) , (¡v), I will
answer these.
Now,
First, find constant based on question (¡¡)
Constant K = l/m = 6/18 = 1/3
(¡¡¡) Find L when M is 33
=> L = MK
=> L = 33 × 1/3
=> L = 11
(¡v) Find M when L is 8.
=> M = LK
=> M = 8 × 1/3
=> M = 8/3
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72. Rate = SI × 100
P × T
= 500 × 100
2000 × 3
= 25/3% Rate of 1st
equation
SI = P × R × T
100
= 36000 × 25 × 3
100 × 3
= ₹9000
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73. The Mass = M , Length = L
According to the rule of Direct
proportioality:
=> M = K
L
=> 192 = K
16
=> 12 = K => K = 12
In 2nd equation:-
M = 105g, K = 12
=> L = M
K
=> L = 105
12
=> L = 8.75m
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74. I have answered this question with
an image given above.
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75. He Walks 250 steps to cover = 200m
=> He will walk 1 step to cover =
200/250 m
=> He will walk 350 steps to cover
= 200 × 350
250
=> Total distance he will cover = 280 m.
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76. Car travels distance of 225 km in =
25 l of petrol
=> Car will travel distance of 1 km in =
25/225 l of petrol.
=> Car will travel distance of 540 km in
= 25 × 540
225
=> Car will cover total distance of 60 m.
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in a better way. If you find it
useful, then please mark it
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