Exams

Biological membranes are composed of

A can paint a house in 45 days and B can do it in 15 days. Along with C, they did the job in 5 days only. Then, C alone can do the job in how many days?

Of the 3 numbers whose average is 22, the first is 3/8th the sum of other 2. What is the first number?

If x and y are natural numbers such that x + y = 2017, then what is the value of (– 1)x+ (– 1)y?

Identical cubes of largest possible size are cut from a solid cuboid of size 65 cm × 26 cm × 3.9 cm. What is the total surface area (in cm2) of all the small cubes taken together?

Japanese Ukiyo e prints depicted

If a-1a=7,then a2+1a2=?

The difference between the selling prices of an article sold at 4% and 3% profits is Rs.3 The cost price of the article is :