For the following questions answer them individually
A and B together can finish a work in 30 days. They worked for it for 20 days and then B left the work. The remaining work was done by A alone in 20 days more. In how many days can A alone finish the work?
The centroid of an equilateral triangle ABC is G. If AB is 6 cms, the length of AG is
A merchant changed his trade discount from 25% to 15%. This would increase selling price by
If 177 is divided into 3 parts in the ratio 1/2 : 2/3: 4/5, then the second part is
If percentage of profit made,when an article is sold for Rs.78, is twice as when it is sold for Rs.69, the cost price of the article is
The ratio between Ram’s age and Rahim’s age is 10:11. What is the age of Rahim in percentage of Ram’s age
Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is
If $$x=\frac{3}{2}$$, then the value of $$27x^3-54x^2+36x-11$$ is
If a+b+c = 6 and ab+bc+ca = 11, then the value of bc(b+c) + ca(c+a) +ab(a+b) +3abc is
If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is
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