For the following questions answer them individually
The ratio of the market price of wheat and rice is 3 : 8 and the ratio of their quantities consumed in a family is 4 : 9.
What is the ratio of expenditure on wheat and rice?
Sachin takes 50 minutes more than Prem to walk 35 km. But if Sachin doubles his speed, he is ahead of Prem by $$1\frac{1}{2}$$ hours. Sachin's speed is:
Find the ratio between the fourth proportional of 2, 4, 6 and the third proportional of 4, 8.
A and B can complete a work in 6 days. B and C can complete the same work in 10 days. A, B and C together can complete the same work in 5 days. In how many days can A and C complete the same work?
The population of a particular city is 5,00,000. If the annual birth rate is 5% and the annual death rate is 1%, then what will be the population of the city after 3 years?
The cost price of an article is ₹1,545, which is 25% below the marked price. If the article is sold at 18% discount, what profit per cent is made on the transaction?
A sum of ₹15,500 amounts to ₹19,189 in $$3\frac{1}{2}$$ years at a certain rate per cent per annum, at simple interest The simple interest on the same sum at the same rate for $$6\frac{2}{3}$$ years will be (nearest to a ₹):
The cost of one chair is ₹450. Ravi buys 10 chairs for ₹3.825. The discout per cent he gets in buying the 10 chairs is:
If the sides of a rectangle, whose area is 154 $$cm^{2}$$, differ by 3 cm, then find the length (in cm) of the longer side.
A bag contains coins of denominations ₹1, ₹2 and ₹5 only in the ratio of 12 : 5 : 3. If the total amount in the bag is ₹3,626, then what is the number of coins of ₹5 in the bag?