Let, B1 : B2 : B3 = 3x : 4x : 5x
again B1 : B2 : B3 = 5y : 4y : 3y
Since there is increase in no.of oranges in first two baskets only, it means the no. of oranges remains constant in the third basket
Therefore, 5x = 3y
Hence 3x : 4x : 5x => = 9y:12y:15y
and 5y : 4y : 3y => 25x : 20x : 15x
Therfore, increment in first basket = 16
Increment in second basket = 8
Thus, required ratio = 16/8 = 2:1
Assume the weight of alloy a is 100 kg
Therefore, The weight of alloy B is 400kg
Gold silver copper
A 40kg 60kg 0kg
B 140kg 160kg 100kg
total 180kg 220kg 100kg
Therefore, Ratio of gold and silver in new alloy = = 36% :44%
Concentration of petrol in A B C
1/2 3/5 4/5
Quantity of petrol taken from A = 1 litre out of 2 litre
Quantity of petrol taken from B = 1.8litre out of 3 litre
Quantity of petrol taken from C = 0.8 litre out of 1 litre
Therefore, total petrol taken out from A, B and C = 1+1.8+0.8 =3.6 litres
So, the quantity of kerosen =(2+3+1) - 3.6 =2.4 litre
Thus, the ratio of petrol to kerosene = 3.6/2.4 = 3/2
Let the number of boys and girls be 8x and 5x.
Total number of students = 13x = 13 * 32 = 416.
Dog : Hare = (3*3) leaps of hare : 5 leaps of hare = 9 : 5.
Let the total population be 'p'
Given ratio of male and female in a city is 7 : 8
In that percentage of children among male and female is 25% and 20%
=> Adults male and female % = 75% & 80%
But given adult females is = 156800
=> 80%(8p/15) = 156800
=> 80 x 8p/15 x 100 = 156800
=> p = 156800 x 15 x 100/80 x 8
=> p = 367500
Therefore, the total population of the city = p = 367500
Let the third proportional to and be z. Then,
=> z=
Given ratio = 7 : 5 : 3 : 4, Sum of ratio terms = 19.
Smallest part = (76*3/19) = 12
The wages of labourers in a factory increases in the ratio 22:25 and there was a reduction in the number of labourers in the ratio 15:11. Find the original wage bill if the present bill is Rs 5000 ?
Ratio of increase of wages = 22:25
Ratio of decrease of labourers = 15:11
Compound ratio of wages of labourers = 22 x 15 : 25 x 11 = 330:275
Final bill = Rs. 5000
For 275 ratio wages = Rs. 5000
For 1 ratio wages = 5000/275
For 330 ratio wages = 5000/275 x 330 = Rs. 6000
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