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If x = 15 then 15 = x ⇒ x5 - 16 x4+ 16x3- 16x2+ 16x - 16 ⇒ x5 - 15x4 - x4 + 15 x3 + x3 - 15 x2 - x2 + 15 x + x - 16 ⇒ x5 - x5 - x4 + x4 + x3 - x3 - x2 + x2 + 15 – 16 (Putting 15= x) ⇒ -1
‘x’ varies directly as ‘y’. If at x = 24 the value of ‘y’ is 25% more than ‘x’, then find the value of ‘x’ when ‘y’ = 55.
...Rs 1500 was divided among Sara, Ravi and Mohan in the ratio of 5:10:15 respectively. Find the amount received by Sara and Ravi together.
The earnings of two individuals, P and Q, are in the ratio of 4:7. After an increase of 30% in Q’s earnings, his total earnings amount to Rs. 27,300. ...
Monthly savings of ‘Q’ is 20% more than that of ‘P’ and is 44% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 4760 a...
What number has to be added to each term of 2:3 to make the ratio 4:5?
If 3 kg of metal, of which 1/4 is aluminium and the rest is magnesium, be mixed with 5 kg of metal, of which 1/3 is aluminium and the rest is magnesium,...
A vessel is full of 90-liter milk 18 liter taken out and replaced by water, again 15liter milk is taken out and replaced by water and again 10liter milk...
Rahul and Tarun scored marks in the ratio 6:5. If Rahul had scored 4 marks more and Tarun had scored 5 marks less, the ratio of their marks would have b...
Ratio of males to females in village ‘A’ and village ‘B’ is 4:5 and 11:12, respectively and number of females in village ‘B’ is 25% more tha...
There is a mixture of 63 liters of apple juice and water in a vessel. The ratio of apple juice to water is 3:4. If 14 liters of the mixture is taken out...
