The electricity bill of a certain establishment is partly fixed and partly varies as the number of units of electricity consumed. When in a certain month 540 units are consumed, bill is Rs 1800. In another month 620 units are consumed and the bill is Rs.2040. In yet another month 500 units are consumed. The bill for that month would be?

A , B , C started a partnership business by investing Rs 27000 , 72000 , 81000 respectively. At the end of the year , the profit were distributed among them. If C's share of profit is 36000, What is the total profit?

If the numerator of a fraction is increased by 200%and the denominator of the fraction in increased by 150%, the resultant fraction is 7/10. What is the original fraction?

In a house, there are dogs, cats and parrot in the ratio 3:7:5. If the number of cats was more than the number of dogs by a multiple of both 9 and 7, what is the minimum of pets in the house?

The ratio of the present ages of two brothers is 1 : 2 and 5 years back, the ratio was 1 : 3. What will be the ratio of their ages after 5 years?

The average price of three items of furniture is Rs. 15000. If their price are in the ratio 3 : 5 :7, the price of the cheapest item is:

The salaries of A, B, C are in the ration 2:3:5. If the increments of 15% ,10% and 20% are allowed respectively in their salaries, then   what will be the ratio of their salaries?

Ratio of Rani’s and komals age is 3 : 5 respectively. Ratio of Komal’s and pooja’s age is 2 : 3 respectively. If Rani is two – fifth of Poja’s age, what is Rani’s age?

A man has divided his total money in his will in such a way that half of it goes to his wife, 2/3 rd of the remaining among his three sons equally and the rest among his four daughters equally. If each daughter gests Rs. 20,000, how much money will each son get?

5x² – 13xy + 6y² = 0,then x : y is: