Let Veena's weight = 1 kg
Sana's weight = 2 kg
Sneha's weight = 1.4 kg
Rina's weight = 1.8 kg
Now,according to the given data in the question,
x = .
Let marks obtained by N = x
M's marks = 0.80x
L's marks = 1.25 (0.80x)
K's marks = (0.90) (1.25) (0.80x)
= 0.9x
But 0.9x = 360 ? x = 400
Percentage of Marks obtained by N
= 400 x 100/500 = 80%
Let the total number of pages in the book be 'x'.
From given data,
2x/5 + 34x/100 + 52 + 52 = x
=> 40x + 34x + 10400 = 100x
=> 26x = 10400
=> x = 400.
Hence, total pages in the book are 400.
y=100 x=130
130---------30
100---------? => 23 1/3%
Let the number be 'N'
Given N + 30N/100 = 390
=> 130N/100 = 390
=> N = 390 x 10/13
=> N = 300.
Let the number be n. Then,
50% of n - 35% of n = 24
50/100 n - 35/100 n = 24
n = (24 x 100)/15 = 160.
The discount offered by showroom = 18%
Raghu purchased at Rs. 54540
Then,
The marked price is given by
54540 x 100/82
=~ Rs. 66,512
Let 36 is p% of 80
=> p x 80/100 = 36
=> p = 36 x 10/8 = 45.
56% of 870 = 56x870/100 = 487.20
82% of 180 = 82x180/100 = 147.60
32% of 90 = 32x90/100
487.20 + 147.6 - 28.8 = ?
? = 634.8 - 28.8
? = 606.
Given the price of a commodity is decreased by p = 20%
And its consumption is increased by q = 10%
Now, required increase or decrease in the expenditure on the commodity can be
p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%.
Hence, decrease in the expenditure = 12%
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