A1) Here sum of the ratio is = 2 + 3 = 5 Then, A’s share = B’s share = |
X : Y = 4 : 5 and Y : Z = 3 : 2 then what amount each person will recieve?
A2) Here X:Y:Z: = 12:15:10 Here sum of the ratio is = 12 + 15 + 10 = 37 Then- X will get = Y will get = Z will get = |
A3) Here it can be written as- 2 : x = x:32 Or
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A4) This can be arranged as- Then |
A5) A : B = 2 : 3 B : C = 4 : 5 = C : D = 7 : 9 = A : B : C : D = 2 : 3 :
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A6) Let the numbers be x and y, so that- x/y =3/5 or 5x = 3y … (1) Again- Or 5x – y = 40… (2) By solving (1) and(2), we get- X = 12 and y = 20 Hence the required numbers are- 12 and 20 |
A7) Let the bottles filled by machine in 5 hours be x We can write the given information as follows-
There is a direct relationship between time taken and bottles filled by machine, So that, we get- So that 700 bottles can be filled by the machine in 5 hrs. |
A8) Suppose the mast of the model ship be x, then We can write the given information as follows-
There is a direct relationship- So that, So that the length of a model ship is 21m. |
A9) Person’s monthly salary = 20,000 Savings = (20,000 – 8000) = 12,000 Fraction of his saving = 12,000/20,000 By converting the fraction into percentage, we get- |
A10) 25% of 120 will be- Which means he reduced Rs. 30, then the new price is- 120 – 30 = 90 The new price is Rs. 90
Example: If 20% of any number is 500 then find out the number? Sol. Let the number is ‘x’, then- Hence the number is 2500. |